Citazione Stile APA (7a Edizione)

(2001). The American Geographical Society's focus on geography. Published by the Society in cooperation with the Dept. of Geography, University of Kentucky.

Citazione stile Chigago Style (17a edizione)

The American Geographical Society's Focus on Geography. New York: Published by the Society in cooperation with the Dept. of Geography, University of Kentucky, 2001.

Citatione MLA (9a ed.)

The American Geographical Society's Focus on Geography. Published by the Society in cooperation with the Dept. of Geography, University of Kentucky, 2001.