Gaya APA
Physical Geology : Charles C.Plummer. (2007).
New York:
[s.n.].
Gaya Chicago
Physical Geology : Charles C.Plummer.
.
New York:
[s.n.],
2007.
Text.
Gaya MLA
Physical Geology : Charles C.Plummer.
.
New York:
[s.n.],
2007.
Text.
Gaya Turabian
Physical Geology : Charles C.Plummer.
New York:
[s.n.],
2007.
Print.