APA استشهاد

N.K. Nair. (2009). Purchasing and materials management. Vikas.

استشهاد بنمط شيكاغو

N.K. Nair. Purchasing and Materials Management. New Delhi: Vikas, 2009.

MLA استشهاد

N.K. Nair. Purchasing and Materials Management. Vikas, 2009.