Citazione Stile APA (7a Edizione)

Roepke, H. G. (1967). Readings in economic geography. John Wiley.

Citazione stile Chigago Style (17a edizione)

Roepke, Howerd G. Readings in Economic Geography. New York: John Wiley, 1967.

Citatione MLA (9a ed.)

Roepke, Howerd G. Readings in Economic Geography. John Wiley, 1967.