APA استشهاد

Gupta, D. P., & Shangiri, K. K. (1980). Agricultural development In Punjab. Agricole Publishing Academy.

استشهاد بنمط شيكاغو

Gupta, D P., و K K. Shangiri. Agricultural Development In Punjab. New Delhi: Agricole Publishing Academy, 1980.

MLA استشهاد

Gupta, D P., و K K. Shangiri. Agricultural Development In Punjab. Agricole Publishing Academy, 1980.