APA način citiranja (7. izdanje)

Vrat, P., & Sardana, G. S. (1998). Productivity management: A system approach. Narosa Publishing House.

Čikaški stil citiranja (17. izdanje)

Vrat, Prem, i G.D. Sahay Sardana. Productivity Management: A System Approach. New Delhi: Narosa Publishing House, 1998.

MLA način citiranja (8. izdanje)

Vrat, Prem, i G.D. Sahay Sardana. Productivity Management: A System Approach. Narosa Publishing House, 1998.