The way in which you reference this quote will depend greatly on where you have found it.
In text citation for Cite Them Right Harvard referencing style:
If you are using the original source, you will follow the usual rule citing and include the author and date for the in-text citation. When making reference to an author's whole work in your text, it is sufficient to give the name followed by the year of publication of their work:
Example: When writing for a professional publication, it is good practice to make reference to other relevant published work. This view has been supported by Cormack (1994).
However, where you are mentioning a particular part of the work, and making direct or indirect reference to this, a page reference should be included:
Example: Cormack (1994, pp.32-33) states that "when writing for a professional readership, writers invariably make reference to already published works". and provide the full reference details of the document in the reference list at the end.
Reference list in Cite Them Right Harvard referencing style:
On the Cite Them Right website information and guidelines can be found on the sections “Setting out quotations” and “How do I reference a source quoted in another author’s work? (Secondary referencing)”
