Dyfyniad APA

Atwal,A S, & Balraj singh. (1990). Pest population and assessment of crop losses. ICAR.

Dyfyniad Arddull Chicago

Atwal,A S, and Balraj singh. Pest Population and Assessment of Crop Losses. New Delhi: ICAR, 1990.

Dyfyniad MLA

Atwal,A S, and Balraj singh. Pest Population and Assessment of Crop Losses. ICAR, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.