Gaya APA
Gabler, Robert E., Sager, Robert J., Wise, Daniel L.. (1994).
Essentials of Physical Geography (update version) (Ed. 4).
Orlando-Florida:
Harcourt Brace College Publishers.
Gaya Chicago
Gabler, Robert E., Sager, Robert J., Wise, Daniel L..
Essentials of Physical Geography (update version).
Ed. 4
Orlando-Florida:
Harcourt Brace College Publishers,
1994.
Text.
Gaya MLA
Gabler, Robert E., Sager, Robert J., Wise, Daniel L..
Essentials of Physical Geography (update version).
Ed. 4
Orlando-Florida:
Harcourt Brace College Publishers,
1994.
Text.
Gaya Turabian
Gabler, Robert E., Sager, Robert J., Wise, Daniel L..
Essentials of Physical Geography (update version).
Ed. 4
Orlando-Florida:
Harcourt Brace College Publishers,
1994.
Print.