Cita APA (7a ed.)

Vrat, P., Sardana, G. D., & Sahay, B. S. (1998). Productivity management: A systems approach. Narosa Pub.

Cita Chicago Style (17a ed.)

Vrat, Prem, G. D. Sardana, y B. S. Sahay. Productivity Management: A Systems Approach. New Delhi: Narosa Pub, 1998.

Cita MLA (8a ed.)

Vrat, Prem, et al. Productivity Management: A Systems Approach. Narosa Pub, 1998.