Gaya APA
Birdsall, Stephen S, John Florin. (1994).
Garis Besar Geografi Amerika .
United States of America:
United States Department State.
Gaya Chicago
Birdsall, Stephen S, John Florin.
Garis Besar Geografi Amerika.
United States of America:
United States Department State,
1994.
Texts.
Gaya MLA
Birdsall, Stephen S, John Florin.
Garis Besar Geografi Amerika.
United States of America:
United States Department State,
1994.
Texts.
Gaya Turabian
Birdsall, Stephen S, John Florin.
Garis Besar Geografi Amerika.
United States of America:
United States Department State,
1994.
Texts.