Birdsall, S. S. (2004). Garis Besar Geografi Amerika. John Wiley & Sons.
Chicago Style (17th ed.) CitationBirdsall, Stephen S. Garis Besar Geografi Amerika. John Wiley & Sons, 2004.
MLA (8th ed.) CitationBirdsall, Stephen S. Garis Besar Geografi Amerika. John Wiley & Sons, 2004.
Warning: These citations may not always be 100% accurate.