APA استشهاد

Gangwar B. Singh V.K. (2012). System based integrated nutrient management. New India publishing agency.

استشهاد بنمط شيكاغو

Gangwar B. Singh V.K. System Based Integrated Nutrient Management. New delhi: New India publishing agency, 2012.

MLA استشهاد

Gangwar B. Singh V.K. System Based Integrated Nutrient Management. New India publishing agency, 2012.