00522cam a2200145 a 4500008004100000020002500041100002000066245010300086260007000189300002600259650003200285700002000317700001900337050002000356850807s1984    it a     b   i000 0 eng    a9788126908752 (pbk.)  aKarthikeyan, C.00aA textbook of agricultural extension management /cC. Karthikeyan, R. Sendikumar, and Jaganathan.   aNew Delhi :bAtlantic Publishers and Distributors (P) Ltd,c2019.  avii, 160 p. :bill. ; 0aAgricultural extension work1 aSendilkumar, R.1 aJaganathan, D.00aS544b.A58 1984