000 00306nam a2200109Ia 45e0
008 181001s1975 xx 000 0 und d
100 _aHudson N.W.
245 0 _aField engineering for Agril. Development
260 _bOxford
_c1975
300 _a225
942 _2ddc
_cBK
999 _c3112
_d3112