Gaya APA
Birdsall, Stephen S., Florin, John. (1992).
Outline of American Geography .
California:
John Wiley & Sons, Inc.
Gaya Chicago
Birdsall, Stephen S., Florin, John.
Outline of American Geography.
California:
John Wiley & Sons, Inc,
1992.
Text.
Gaya MLA
Birdsall, Stephen S., Florin, John.
Outline of American Geography.
California:
John Wiley & Sons, Inc,
1992.
Text.
Gaya Turabian
Birdsall, Stephen S., Florin, John.
Outline of American Geography.
California:
John Wiley & Sons, Inc,
1992.
Print.