00393nam a2200133Ia 4500008004100000082001800041100002100059245002800080260003700108300001500145600004100160600003400201650002400235140224s9999    xx            000 0 und d  a631.67' 62 L7  aSivanappan, R.K.  aIrrigation and drainage  aMadrasbPopular Book Depotc1977  aviii,305p.  a R.K.Sivanappan and K.R.Karai Gowder  aKarai Gowder, K.R., jt. auth.  aIrrigation,Drainage