From Festipedia, hosted by the FR Heritage Group
- language: The language in which the source is written. Displays in parentheses with "in" before the language name or names. Use the full language name or the proper language code. When the source uses more than one language, list them individually, separated by commas, e.g.
|language=French, German
. Note: When the language is "English" (or "en"), no language is displayed in the citation. Note: When two or more languages are listed there is no need to include "and" before the last language. "and" is inserted automatically by the template. Aliases: lang