Cita APA (7a ed.)

Smith, R. F., Watts, M. W., & Hogan, V. D. (1981). Free enterprise - The American economic system. Laidlaw.

Cita Chicago Style (17a ed.)

Smith, Robert Freeman, Michael W. Watts, y Vivian D. Hogan. Free Enterprise - The American Economic System. River Forest, Ill: Laidlaw, 1981.

Cita MLA (9a ed.)

Smith, Robert Freeman, et al. Free Enterprise - The American Economic System. Laidlaw, 1981.