Gaya APA
Atlas of geology and landforms. (2001).
New York:
[s.n.].
Gaya Chicago
Atlas of geology and landforms.
Cet.1.
New York:
[s.n.],
2001.
Text.
Gaya MLA
Atlas of geology and landforms.
Cet.1.
New York:
[s.n.],
2001.
Text.
Gaya Turabian
Atlas of geology and landforms.
New York:
[s.n.],
2001.
Print.