Gaya APA
Marine Boilers. (1977).
London:
Stanford maritime london.
Gaya Chicago
Marine Boilers.
.
London:
Stanford maritime london,
1977.
Text.
Gaya MLA
Marine Boilers.
.
London:
Stanford maritime london,
1977.
Text.
Gaya Turabian
Marine Boilers.
London:
Stanford maritime london,
1977.
Print.