00255nam a2200097Ia 4500008004100000082001600041100001900057245005300076260002000129300000800149140113s9999    xx            000 0 und d  a631.67   L4  a"Booher, L.J."  aSurface Irrigation.(FAO Agric. Dev. Paper No. 95  a1974bFAOcRome  a160