APA استشهاد

Perkin, H. (1969). Key profession: The history of the Association of University Teachers. Routledge & K. Paul.

استشهاد بنمط شيكاغو

Perkin, Harold. Key Profession: The History of the Association of University Teachers. London: Routledge & K. Paul, 1969.

MLA استشهاد

Perkin, Harold. Key Profession: The History of the Association of University Teachers. Routledge & K. Paul, 1969.