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Gaya APA
Guidelines for ships operating in polar waters. ().
London:
International Maritime Organization.
Gaya Chicago
Guidelines for ships operating in polar waters.
.
London:
International Maritime Organization,
.
Text.
Gaya MLA
Guidelines for ships operating in polar waters.
.
London:
International Maritime Organization,
.
Text.
Gaya Turabian
Guidelines for ships operating in polar waters.
London:
International Maritime Organization,
.
Print.