T. Yellamanda Redde Principles of Agronomy - New Delhi Kalyani Publishers 2004 - 260p T. Yellamanda Redde & G.H.Sankara Reddy: Principles of Agronomy. New Delhi. Kalyani Publishers, 2004. 81-259-1292-4--(630RED) ENGLISH ISBN: 81-259-1292-4 Dewey Class. No.: 630 / YEL