APA استشهاد

Gupta, V. S. (1992). Crop improvement: V.1. Physiological attributes. Oxford & IBH publishing co. pvt. ltd.

استشهاد بنمط شيكاغو

Gupta, V S. Crop Improvement: V.1. Physiological Attributes. New Delhi: Oxford & IBH publishing co. pvt. ltd, 1992.

MLA استشهاد

Gupta, V S. Crop Improvement: V.1. Physiological Attributes. Oxford & IBH publishing co. pvt. ltd, 1992.