Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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