APA Style
Kristensen, Tor R.. (2006).
An Introduction to GMDSS/ROC (4th Edition).
Norway:
Poseidon.
Chicago Style
Kristensen, Tor R..
An Introduction to GMDSS/ROC.
4th Edition
Norway:
Poseidon,
2006.
Text.
MLA Style
Kristensen, Tor R..
An Introduction to GMDSS/ROC.
4th Edition
Norway:
Poseidon,
2006.
Text.
Turabian Style
Kristensen, Tor R..
An Introduction to GMDSS/ROC.
4th Edition
Norway:
Poseidon,
2006.
Print.