00579 a2200193 4500 818586022X 631.715 BOL 21306 33088 Bolliger, Ernst Agricultural extension guidelines for extension workers in rural areas Lucknow International book distributing 1990 1993 [300]p. 27cm Agriculture and related technologies Apparatus, equipment, materials Water conservation Zellweger, Tonino Reinhard, Peter L 48805 48805 0 0 0 0 LEN MKDL MKDL LEN 2009-07-31 0 631.715BOL 52130 2009-07-31 00:00:00 0.00 2016-10-31 L