Gaya APA
Effective Mooring. (1976).
London:
Shell International Marine Ltd..
Gaya Chicago
Effective Mooring.
.
London:
Shell International Marine Ltd.,
1976.
Text.
Gaya MLA
Effective Mooring.
.
London:
Shell International Marine Ltd.,
1976.
Text.
Gaya Turabian
Effective Mooring.
London:
Shell International Marine Ltd.,
1976.
Print.