Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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