Cita APA (7a ed.)

Wooldridge , . S., & East, W. . G. (1951). The spirit and purpose of geography. Hutchinson.

Cita Chicago Style (17a ed.)

Wooldridge , S.W, y W. Gordon East. The Spirit and Purpose of Geography. London,: Hutchinson, 1951.

Cita MLA (9a ed.)

Wooldridge , S.W, y W. Gordon East. The Spirit and Purpose of Geography. Hutchinson, 1951.