Παραπομπή APA

Derrick, D. (1981). Navigation for Offshore and Ocean Sailors. David & Charles.

Παραπομπή Chicago Style

Derrick, David. Navigation for Offshore and Ocean Sailors. Newton Abbot: David & Charles, 1981.

Παραπομπή MLA

Derrick, David. Navigation for Offshore and Ocean Sailors. David & Charles, 1981.