Gaya APA
Introduction To Geography. (2009).
New York:
McGraw Hill.
Gaya Chicago
Introduction To Geography.
Ed. 13.
New York:
McGraw Hill,
2009.
.
Gaya MLA
Introduction To Geography.
Ed. 13.
New York:
McGraw Hill,
2009.
.
Gaya Turabian
Introduction To Geography.
New York:
McGraw Hill,
2009.
.