Levin, R. I., Rubin, D. S., Stinson, J. P., & Gardner, E. S. J. (1992). Quantitative approaches to management (Eigth edition.). National Book Store, Inc.
Cita Chicago (17th ed.)Levin, Richard I., Davis S. Rubin, Joel P. Stinson, i Everette S. Jr Gardner. Quantitative Approaches to Management. Eigth edition. Manila: National Book Store, Inc, 1992.
Cita MLA (9th ed.)Levin, Richard I., et al. Quantitative Approaches to Management. Eigth edition. National Book Store, Inc, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.