APA (7e ed.) Bronvermelding

Não informado. (1981). Ocean Voice. International Maritime Satellite Organization.

Chicago (17e ed.) Bronvermelding

Não informado. Ocean Voice. London: International Maritime Satellite Organization, 1981.

MLA (8e ed.) Bronvermelding

Não informado. Ocean Voice. International Maritime Satellite Organization, 1981.

Let op: Deze citaties zijn niet altijd 100% accuraat.