Παραπομπή APA

Lock, C. M. (1972). Geography: A reference hand book (2nd ed.). Clive Bingley.

Παραπομπή Chicago Style

Lock, C.B. Muriel. Geography: A Reference Hand Book. 2nd ed. London: Clive Bingley, 1972.

Παραπομπή MLA

Lock, C.B. Muriel. Geography: A Reference Hand Book. 2nd ed. Clive Bingley, 1972.