Cita APA (7th ed.)

Heilbroner, R. L. (1982). Economics explained. Simon & Schuster.

Cita Chicago (17th ed.)

Heilbroner, Robert L. Economics Explained. New York: Simon & Schuster, 1982.

Cita MLA (9th ed.)

Heilbroner, Robert L. Economics Explained. Simon & Schuster, 1982.