APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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