APA استشهاد

Gupta, M. (2000). Economics for engineers. Unistar Books Pvt. Ltd.

استشهاد بنمط شيكاغو

Gupta, M.L. Economics for Engineers. Chandigarh: Unistar Books Pvt. Ltd, 2000.

MLA استشهاد

Gupta, M.L. Economics for Engineers. Unistar Books Pvt. Ltd, 2000.