Παραπομπή APA

knak, C. (1990). Diesel motor ships' engines and machinery. Marine management.

Παραπομπή Chicago Style

knak, Christen. Diesel Motor Ships' Engines and Machinery. London: Marine management, 1990.

Παραπομπή MLA

knak, Christen. Diesel Motor Ships' Engines and Machinery. Marine management, 1990.