Agronomy : Theory and Digest - S.S. Cheema; B.K. Dhaliwal T.S. Sahota (Ludhiana Kalyani Publishers, 1991)
S.S. Cheema; B.K. Dhaliwal & T.S. Sahota: Agronomy : Theory and Digest. Ludhiana. Kalyani Publishers, 1991. 81-7096-449-8 Rs. 90.00--(630CHE)
ENGLISH