Gaya APA

, I. (2015). Model course 1.25 General Operator's Certificate For The Global Maritime Distress And Safety System 2015Edition Course + Compendium (2015). London: International Maritime Organization.

Gaya MLA

, IMO. "Model course 1.25 General Operator's Certificate For The Global Maritime Distress And Safety System 2015Edition Course + Compendium". 2015 London: International Maritime Organization, 2015. Text.