Gaya APA
Ships' Routeing 4th Ed.. (1978).
England:
imco.
Gaya Chicago
Ships' Routeing 4th Ed..
Ed. 4.
England:
imco,
1978.
Text.
Gaya MLA
Ships' Routeing 4th Ed..
Ed. 4.
England:
imco,
1978.
Text.
Gaya Turabian
Ships' Routeing 4th Ed..
England:
imco,
1978.
Print.