Cita APA

Colby, C. C. 1., & Foster, A. (1944). Economic geography: Industries and resources of the commercial world. Washington: Ginn.

Citación estilo Chicago

Colby, Charles Carlyle 1884-1965, y Alice Foster. Economic Geography: Industries and Resources of the Commercial World. Washington: Ginn, 1944.

Cita MLA

Colby, Charles Carlyle 1884-1965, y Alice Foster. Economic Geography: Industries and Resources of the Commercial World. Washington: Ginn, 1944.