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TUS: Cite them right: Harvard Guide

What if I want to cite some information that someone else has cited?

In all referencing styles you are strongly encouraged to keep secondary referencing to a minimum and whenever possible you should read and cite from the original or primary source.

If you read an article or book which already has an In-text citation for some information that you want to cite, use the 'secondary referencing' format  (see Section A in this guide), for your in- text reference and for the full reference always refer to the source where you found the information, not the original source.

For example:

Sue reads an article by Alex Byrne in the Australian Library Journal in which he cites or refers to statements made by Tim O'Reilly on his website..Sue wants to refer to O'Reilly's statement in her assignment.

Sue would acknowledge O'Reilly in her text but her reference is to the source where she saw the information. Sue might write as her in-text reference:

In-text reference:

(O'Reilly 2005 cited in Byrne 2008)

In her reference list Sue would write a reference for Byrne's article because that's where she sourced the information. The entry in her References would be:

Full Reference list:

Byrne, A. (2008) 'Web 2.0 strategies in libraries and information services', The Australian Library Journal, 57(4), pp. 365-376.