To cite material that you have not read but that is discussed in another source, refer to both sources in the text, but include in the reference list only the source that you actually used. For instance, suppose you read a work by Feist and would like to quote or paraphrase material presented in that book that comes from work by Bandura. In this case, the in-text citation would be (Bandura, 1989, as cited in Feist, 1998). Feist (1998) would be fully referenced in the list of References; Bandura would not be listed. If the date of the original work is unknown, it is omitted from the citation.

Bandura (1989, as cited in Feist, 1998) defined self-efficacy as “people’s beliefs about their capabilities to exercise control over events that affect their lives” (p. 1175).

In an earlier study (Bandura, 1989, as cited in Feist, 1998) …