Gaya APA
Bulk Carriers. (1965).
London:
Barker & Howard.
Gaya Chicago
Bulk Carriers.
.
London:
Barker & Howard,
1965.
Text.
Gaya MLA
Bulk Carriers.
.
London:
Barker & Howard,
1965.
Text.
Gaya Turabian
Bulk Carriers.
London:
Barker & Howard,
1965.
Print.