000 00321nam a2200109Ia 45e0
008 181001s2018 xx 000 0 und d
100 _aHudson
245 0 _aField engineering for agricultural devp.
260 _aLondon
_bE.L.B.S.
_c183
300 _a225
942 _2ddc
_cBK
999 _c3575
_d3575