Gaya APA
Physical Geology:Earth Revealed. (2009).
New York:
[s.n.].
Gaya Chicago
Physical Geology:Earth Revealed.
eighth.
New York:
[s.n.],
2009.
Text.
Gaya MLA
Physical Geology:Earth Revealed.
eighth.
New York:
[s.n.],
2009.
Text.
Gaya Turabian
Physical Geology:Earth Revealed.
New York:
[s.n.],
2009.
Print.