Gaya APA
Montgomery, Carla W.. (2011).
Environmental geology (9th ed.).
New York:
McGraw-Hill.
Gaya Chicago
Montgomery, Carla W..
Environmental geology.
9th ed.
New York:
McGraw-Hill,
2011.
Text.
Gaya MLA
Montgomery, Carla W..
Environmental geology.
9th ed.
New York:
McGraw-Hill,
2011.
Text.
Gaya Turabian
Montgomery, Carla W..
Environmental geology.
9th ed.
New York:
McGraw-Hill,
2011.
Print.