This section looks at some general answers for frequently asked questions when referencing sources.
What to do if there's no author
Harvard & APA: If there is no personal author, and it's clear that an organisation created the work, then you can use the organisational name as author. Only use Anonymous or Anon. if the source clearly states an anonymous author. If there is no personal author and no clear organisational author, use the title as the first element in the reference entry and move the date to after the title.
MLA: If there is no personal or organisational author listed, omit the author and move on to the next element in the reference entry.
What to do if there's no year of publication
Harvard: If there is no year listed, use n.d. where you would normally put the year.
APA: Use (n.d.) where you would normally put the year.
MLA: Omit the year and move on to the next element in the reference entry.
What to do if there's no title (including images)
Harvard: Create a descriptive title of the work and add it in italics as the title element of the reference entry.
APA: Create a descriptive title of the work and add it in square brackets ([ ]) as the title element of the reference entry.
MLA: Create a descriptive title of the work and add it as the title of source or title of container accordingly.
Noting different editions
Harvard: If an edition is listed, add the edition number followed by edn as an additional element after the title element of the reference entry.
APA: If an edition is listed, add the edition number followed by (ed.) in brackets after the title element of the reference entry.
MLA: Use the version element to show the edition number.
Noting different formats of sources
Harvard: Add a format descriptor after the title element of a reference entry, separated by commas.
APA: Add a format descriptor after the title element of a reference entry in square brackets ([ ]).
MLA: Add a format descriptor at the very end of the reference entry in a new sentence as an unexpected type of work. This is an optional element.
What to do if there's no publisher or the publisher isn't clear
Harvard: Some works may be independently published by the author, or an organisational author may also be the publisher. Duplicate the author as the publisher. If the work isn't published by the author and there is no publisher listed, use s.n. (sine nomine) instead.
APA: Do not duplicate the author as the publisher, instead omit the publisher element. If the work isn't published by the author and there is no publisher listed, remove the reference from the reference list and either cite it in the text as personal communications, or substitute for a different reference. If it is a historical work, and there is a printer listed, it would be acceptable at the TASC level to use the printer in place of the publisher.
MLA: Use what information is provided as either publisher or other contributor. Do not duplicate the author if they are also the publishers. If there is no publisher, omit the publisher element and move on to the next element of the reference entry.
What to do if there's no location for the publisher listed
Harvard: Use s.l. (sine loco) instead.
APA: Publisher location is not an element that is used in APA.
MLA: Publisher location is not an element that is used in MLA.