APA (7e ed.) Bronvermelding

London Centre for Psychotherapy, ebrary, Inc, & Foster, A. (2006). Difference: An avoided topic in practice. Karnac.

Chicago (17e ed.) Bronvermelding

London Centre for Psychotherapy, Inc ebrary, en Angela Foster. Difference: An Avoided Topic in Practice. London ; New York: Karnac, 2006.

MLA (9e ed.) Bronvermelding

London Centre for Psychotherapy, et al. Difference: An Avoided Topic in Practice. Karnac, 2006.