00386    a2200133   4500020001500000082001500015100001900030245004800049260004700097300002000144440004100164650002300205650002400228  a8172330944  a631.7bPES  aPescod, M. B.   aWastewater treatment and use in agriculture  aJodhpurbScientific Publishersc1992g1992  axiv,124p.c29cm  aFAO irrigation and drainage paper 47  aWater conservation  aSpecific techniques