title: Title of source. Can be wikilinked to an existing Wikipedia article or url may be used to add an external link, but not both. Formatted in quotes.
trans_title: If the source cited is in a foreign language, an English translation of the title can be given here. The template will display this in square brackets after the title field and it will link to the url field, if used. Use of the language parameter is recommended.
Titles containing certain characters will display and link incorrectly unless those characters are encoded.
