APA (7th ed.) Citation

Sack, R. D. (1997). Homo geographicus: A framework for action, awareness and moral concern. Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Sack, Robert David. Homo Geographicus: A Framework for Action, Awareness and Moral Concern. Baltimore: Johns Hopkins University Press, 1997.

MLA (9th ed.) Citation

Sack, Robert David. Homo Geographicus: A Framework for Action, Awareness and Moral Concern. Johns Hopkins University Press, 1997.