Παραπομπή APA

Wooldridge, S. (1966). spirit and purpose of geography. Hutchinston University.

Παραπομπή Chicago Style

Wooldridge, S.W. Spirit and Purpose of Geography. London: Hutchinston University, 1966.

Παραπομπή MLA

Wooldridge, S.W. Spirit and Purpose of Geography. Hutchinston University, 1966.