APA (7th ed.) Citation

Birdsall, S. S., & Florin, J. (1992). Garis besar geografi Amerika. John Willey and Sons.

Chicago Style (17th ed.) Citation

Birdsall, Stephen S., and John Florin. Garis Besar Geografi Amerika. John Willey and Sons, 1992.

MLA (8th ed.) Citation

Birdsall, Stephen S., and John Florin. Garis Besar Geografi Amerika. John Willey and Sons, 1992.

Warning: These citations may not always be 100% accurate.