View source for Template:One source/doc

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{{Friendly standard installation}}
{{Shortcut|T:ONES}}

==Purpose==
This template alerts people to encyclopedic content which appears to rely on a single source.  

A single source is usually less than ideal, because a single source may be inaccurate or biased.  Without other sources for corroboration, [[Wikipedia:Verifiability|accuracy]] or [[Wikipedia:Neutral point of view|neutrality]] may be suspect.  By finding multiple ''independent'' sources, the reliability of the encyclopedia is improved. For [[WP:BLP|BLP]] articles that cite one source and need more, use {{t|BLP one source}} instead.

Citing only one source is not a violation of any policy.  Consider ''not'' adding this tag to stubs, articles that are being actively expanded, or articles that have no apparent problems with verifiability and neutrality.  

==Parameters==
===Usage===

{{Tlc|One source|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}

{{Tlc|One source|section|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}

{{Tlc|One source|text{{=}}Alternate first sentence|date{{=}}{{CURRENTMONTHNAME}} {{CURRENTYEAR}}}}

===Subject===
The first unnamed parameter replaces "This article relies" with "This ''PARAMETER'' relies".  

For example, {{Tlc|One source|section}} displays:

{{One source|section}}

===First sentence===
You can replace the entire first sentence by specifying the <code>text=</code> parameter.  This can be used when the standard wording is not applicable, but the general intent of the template is.

===Date===
As with most cleanup templates, the <code>date=</code> parameter sorts the article into subcategories of [[:Category:Articles lacking sources]], allowing the oldest problems to be identified and dealt with first.  You do not need to specify the date manually; a [[WP:Bots|bot]] will add it later automatically.

==Editorial usage==
This template should only be used for encyclopedic content which has a verified, cited source, but only the one source.

A single source is not automatically a problem.  Good judgment and common sense should be used.

Please consider improving the article or making a good-faith attempt to find additional citations before adding this template.

It is considered good form to provide a rationale in your edit summary or on the talk page of the article.  The more specifically you describe your concerns, the less likely other editors are to misunderstand.

If you believe problems exist beyond the sources themselves, address that issue with an appropriate template (see below), rather than simply questioning the sources.

===Alternatives===
* Inline version
** {{Tl|Single Source-inline}} – same concept but used within the context of individual sentences or phrases.
* Sources and citations
** {{Tl|Failed verification}} – Citation does not support the article's claim(s)
* Article content
** {{Tl|POV}} – Neutrality, point-of-view, bias

==Administrivia==
This template will categorise tagged articles into [[:Category:Articles needing additional references]].  If a date is supplied, a monthly category like [[:Category:Articles needing additional references from {{CURRENTMONTHNAME}} {{CURRENTYEAR}}]] will be used instead.

Do not [[Wikipedia:Substitution|subst:]] this template.

==Template data==
{{TemplateData header}}
<templatedata>
{
	"params": {
		"1": {
			"label": "Subject",
			"description": "The first unnamed parameter replaces \"This article relies\" with \"This PARAMETER relies\".",
			"example": "section",
			"type": "line"
		},
		"text": {
			"label": "First Sentence",
			"description": "You can replace the entire first sentence by specifying this parameter. ",
			"type": "line"
		},
		"date": {
			"label": "Month and year",
			"description": "As with most cleanup templates, the date= parameter sorts the article into subcategories of Category:Articles lacking sources, allowing the oldest problems to be identified and dealt with first. You do not need to specify the date manually; a bot will add it later automatically.",
			"type": "string",
			"autovalue": "{{subst:CURRENTMONTHNAME}} {{subst:CURRENTYEAR}}",
			"suggested": true
		}
	},
	"description": "This template alerts people to encyclopedic content which appears to rely on a single source.",
	"format": "block"
}
</templatedata>

==See also==
* [[Wikipedia:Template messages/Cleanup]]
* [[Wikipedia:Template messages/Sources of articles]]

{{Citation and verifiability article maintenance templates}}
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[[Category:Citation and verifiability maintenance templates|{{PAGENAME}}]]

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