Gaya APA

Imo, . (2002). Model Course 1.31 Second-Class Radioelecronic Certificate For Global Maritime Distress and Safety System Radio Personnel (2002 Edition). London: IMO London.

Gaya MLA

Imo, . "Model Course 1.31 Second-Class Radioelecronic Certificate For Global Maritime Distress and Safety System Radio Personnel". 2002 Edition London: IMO London, 2002. Text.