Gaya APA

Bridsall, S, S., Florin, J. (1992). Garis Besar Geografi Amerika (Ed. IV). New York: York John Wil ey.

Gaya MLA

Bridsall, Stephen, S.., Florin, Jhon. "Garis Besar Geografi Amerika". Ed. IV New York: York John Wil ey, 1992. Text.