This template is used for referring to books by their Library of Congress Control Numbers. Enter the LCCN without any dashes or vertical bars between the numbers.

For example, to link 89-456, use:

{{LCCN|89456}} gives

LCCN 89-456

and to link sa65-3567, use:

{{LCCN|sa653567}} gives

LCCN sa65-3567

You can use a second parameter to add a title.

{{LCCN|89456|Monarch butterflies}}

LCCN 89-456 – Monarch butterflies

By specifying | long = yes, you can also provide a more detailed output, especially for use in External Links sections:

{{LCCN|89456|long=yes}} gives

Catalog record for LCCN at the United States Library of Congress

You can also use the second parameter to specify the book title if the page where the name of the article you're working on is not identical to the work you're citing. This is often true in the case of parenthetical disambiguation:

{{LCCN|89456|Monarch butterflies|long=yes}} gives

Catalog record for Monarch butterflies at the United States Library of Congress

References a Library of Congress Control Number.

Template parameters[Edit template data]

Parameter		Description	Type	Status
LCCN id	1 id	LCCN without hyphens Example 89456	String	required
Title	2 title name	Title of the book Example Monarch butterflies	String	optional
Long format	long	yes to use the long format Example yes	Boolean	optional

• LCCN Permalink FAQ, Library of Congress
• bugzilla:8160: ParserFunction for Library of Congress Control Numbers (LCCN)
• {{LCC}}
• {{LCCN8}} – for adding LCCNs from Chronicling America