Citing a source within a source (secondary sources)
For sources that you have not actually seen but which are referred to in another work, list the secondary source (the source you have read) in the Reference List. In-text, name the original work and give a citation for the secondary source.
For example, if Bennett's work is cited in a book by Rudman and you didn't read Bennett's original work, list the source you did read (in this case the Rudman reference) in the Reference List.
Bennett (as cited in Rudman, 1999) defined ...
Rudman, R. (1999). Human resources management in New Zealand. (3rd ed.). Auckland, New Zealand: Addison Wesley Longman.