Manoharan, P. Muthuah Agricultural extension / P. Muthuah Manoharan and R. Arunachalam - 1st ed - New Delhi : Himalaya publishing, 2003 - xi, 317 p. : ill. ; 22 cm. Include index ISBN: 8178667940 Subjects--Topical Terms: Agricultural extension LC Class. No.: S544 / .A58 1984 Dewey Class. No.: 630 / MAA