00539nam a2200169Ia 4500008004100000082002100041100001500062245004200077260004800119300001000167600002800177600002900205650001000234942000700244952010100251999001700352140224s9999    xx            000 0 und d  a551.448.002.2 L9  aWatt, S.B.  aHand dug wells and their construction  aLondonbEnglish language book societyc1979  a253p.  a S.B.Watt and W.E.Wood.  aWood, W.E., joint author  aWells  cBK  00104070aKSDbKSDd2014-02-24l0o551.448.002.2 L9p2884r2014-02-24 00:00:00w2014-02-24yBK  c93394d93394