Παραπομπή APA

Olle J G. (1974). Librarianship: An introduction to the profession. Clive Bingley.

Παραπομπή Chicago Style

Olle J G. Librarianship: An Introduction to the Profession. London: Clive Bingley, 1974.

Παραπομπή MLA

Olle J G. Librarianship: An Introduction to the Profession. Clive Bingley, 1974.