Cita APA (7th ed.)

Riggs, J. L. (1981). Production systems: Planning, analysis and control (3rd ed.). Wiley.

Cita Chicago (17th ed.)

Riggs, James L. Production Systems: Planning, Analysis and Control. 3rd ed. New York: Wiley, 1981.

Cita MLA (9th ed.)

Riggs, James L. Production Systems: Planning, Analysis and Control. 3rd ed. Wiley, 1981.