Lua APA (7ú heag.)
Whittlesey, D. S. (1944). The earth and the state: A study of political geography. Henry Holt and Company.
Lua i Stíl Chicago (17ú heag.)
Whittlesey, Derwent Stainthorpe. The Earth and the State: A Study of Political Geography. New York: Henry Holt and Company, 1944.
Lua MLA (9ú heag.)
Whittlesey, Derwent Stainthorpe. The Earth and the State: A Study of Political Geography. Henry Holt and Company, 1944.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.