Tohutoro APA (7th ed.)

Heilbroner, R. L. (1974). An inquiry into the human prospect. W.W. Norton.

Tohutoru Kātū Chicago (17th ed.)

Heilbroner, Robert L. An Inquiry into the Human Prospect. New York: W.W. Norton, 1974.

Tohutoro MLA (9th ed.)

Heilbroner, Robert L. An Inquiry into the Human Prospect. W.W. Norton, 1974.