00613nam a2200169Ia 4500008004100000082001700041100004500058245002800103260002000131300001600151600001600167600001700183650012200200942000700322952009700329999001700426140224s9999    xx            000 0 und d  a631.674.1 L7  aFood and Agriculture Organization (Rome)  aIrrigation canal lining  aRomebFAOc1977  axviii,199p.  a D.B.Kraaty  aKraaty, D.B.  aIrrigation-farming,Irrigation canals and flumes-design and construction,Canal line irrigation-design and construction  cBK  00104070aKSDbKSDd2014-02-24l0o631.674.1 L7p3087r2014-02-24 00:00:00w2014-02-24yBK  c93941d93941