Prasad S.V.Sai Agri-Facts Agronomy : Useful for JRF, ARS/NET, SAU, Ph.D., IFFCO, NFL and ohter Competitive Exams.. 2nd Ed. - 2nd Ed. - New Delhi New Vishal Publications 2014 - 520p ENGLISH ISBN: 81-9381-733-8 Dewey Class. No.: 153.9463 / PRA