Dyfyniad APA

Singh, R. (1987). Farm production in rainfed sub-mountains Punjab. B.R. Publishing.

Dyfyniad Arddull Chicago

Singh, Rachhpal. Farm Production in Rainfed Sub-mountains Punjab. Delhi: B.R. Publishing, 1987.

Dyfyniad MLA

Singh, Rachhpal. Farm Production in Rainfed Sub-mountains Punjab. B.R. Publishing, 1987.

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