Παραπομπή APA

Hayman, B. (1986). Harbour seamanship. Pergamon press.

Παραπομπή Chicago Style

Hayman, Bernard. Harbour Seamanship. Oxford: Pergamon press, 1986.

Παραπομπή MLA

Hayman, Bernard. Harbour Seamanship. Pergamon press, 1986.