date: Full date of source being referenced in the same format as other publication dates in the citations.[1] Do not wikilink. Displays after the authors and enclosed in parentheses. If there is no author, then displays after publisher.
OR: year: Year of source being referenced.
month: Name of the month of publication. If you also have the day, use date instead; do not wikilink.
origyear: Original publication year; displays after the date or year. For clarity, please supply specifics; example: |origyear=First published 1859 or |origyear=Composed 1904.
^Publication dates in article references should all have the same format. See MOS:DATEUNIFY.
