Cita APA (7th ed.)

Heizer, J. H., & Render, B. (1999). Principles of operations management (3rd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Heizer, Jay H., i Barry Render. Principles of Operations Management. 3rd ed. Upper Saddle River, N.J: Prentice Hall, 1999.

Cita MLA (9th ed.)

Heizer, Jay H., i Barry Render. Principles of Operations Management. 3rd ed. Prentice Hall, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.