00495nam a22001457a 4500 0 0 0 1 LCC LCC 2022-11-03 0 636.007 HEL 65801 2022-11-03 00:00:00 1 2022-11-03 BK 46565 46565 9698175008 (hbk) 636.007 HEL Helmrich, Hans Manual for livestock extensionists Lahore Khoj research and publication centre 1992 186 p. :ill. ; 28 cm. Vol 1 Veterinary Sciences Idara e kissan Farmers participation Elected nomainda Area manager Field manager Control function RCVETS BK