Geografía política

Tít. orig.:"The earth and the state

La Californie. Une région originale des Etats-Unis

Whittlesey Derwent. La Californie. Une région originale des Etats-Unis. In: Revue de géographie alpine, tome 20, n°3, 1932. pp. 563-572

American Geographical Society of New York Records, 1723-2010, bulk 1854-2000

Correspondence between Isaiah Bowman and Derwent Whittlesey, Department of Geology and Geography, Harvard University, and Editor of the Annals of the Association of American Geographers