Gaya APA
Palmer, Joy. (2001).
Daerah kutub .
London:
Franklin Watts.
Gaya Chicago
Palmer, Joy.
Daerah kutub.
London:
Franklin Watts,
2001.
Text.
Gaya MLA
Palmer, Joy.
Daerah kutub.
London:
Franklin Watts,
2001.
Text.
Gaya Turabian
Palmer, Joy.
Daerah kutub.
London:
Franklin Watts,
2001.
Print.