000 00279nam a2200121Ia 4500
008 211209s1962 xx 000 0 und d
041 _aeng
082 _a631.7 N62 HAN
100 _aHANSEN V E
245 _aIRRIGATION PRINCIPLES AND PRACTICES
260 _c1962
300 _a447
999 _c13011
_d13011