APA Style

Stroll, A., H.Popkin, R. (1972). Philosophy and the human spirit : a brief introduction (Second Ed.). New York: Holt, Rinehart and Winston, Inc..

MLA Style

Stroll, Avrum., H.Popkin, Richard. "Philosophy and the human spirit : a brief introduction". Second Ed. New York: Holt, Rinehart and Winston, Inc., 1972. Text.