APA استشهاد

Sawalia Bihari Verma. (2014). Agricultural marketing (1 st.). Scientific.

استشهاد بنمط شيكاغو

Sawalia Bihari Verma. Agricultural Marketing. 1 st. India: Scientific, 2014.

MLA استشهاد

Sawalia Bihari Verma. Agricultural Marketing. 1 st. Scientific, 2014.