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.