Παραπομπή APA

Cowley J. (1976). Map librarianship. Clive Bingley.

Παραπομπή Chicago Style

Cowley J. Map Librarianship. London: Clive Bingley, 1976.

Παραπομπή MLA

Cowley J. Map Librarianship. Clive Bingley, 1976.