Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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