APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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