000 00275nam a2200121Ia 4500
008 211209s1969 xx 000 0 und d
041 _aeng
082 _a631.7 N77 MIC
100 _aMICHAEL A M
245 _aIRRIGATION THEORY AND PRACTICE
260 _c1969
300 _a801
999 _c15391
_d15391