APA استشهاد

Verma, S. B. (2014). Agricultural marketing (1.). scientific publishers.

استشهاد بنمط شيكاغو

Verma, Sawalia Bihari. Agricultural Marketing. 1. Newdelhi: scientific publishers, 2014.

MLA استشهاد

Verma, Sawalia Bihari. Agricultural Marketing. 1. scientific publishers, 2014.