Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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