APA Style
Kristensen, Tor R.. (2003).
GMDSS Course for General Operator's Certificate (6th Edition).
Norway:
Poseidon.
Chicago Style
Kristensen, Tor R..
GMDSS Course for General Operator's Certificate.
6th Edition
Norway:
Poseidon,
2003.
Text.
MLA Style
Kristensen, Tor R..
GMDSS Course for General Operator's Certificate.
6th Edition
Norway:
Poseidon,
2003.
Text.
Turabian Style
Kristensen, Tor R..
GMDSS Course for General Operator's Certificate.
6th Edition
Norway:
Poseidon,
2003.
Print.