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Gaya APA
International Code of Signals 1987 Edition. (1987).
London:
IMO.
Gaya Chicago
International Code of Signals 1987 Edition.
.
London:
IMO,
1987.
Text.
Gaya MLA
International Code of Signals 1987 Edition.
.
London:
IMO,
1987.
Text.
Gaya Turabian
International Code of Signals 1987 Edition.
London:
IMO,
1987.
Print.