Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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