000 00283nam a2200109Ia 4500
008 170101s1991 xx 000 0 und d
082 _a631.4 GHI
100 _aGhildyal, B.P
245 0 _aSoil structure problems and management
260 _aNew Delhi
_bICAT
_c1991
942 _2ddc
_cRS
999 _c404031
_d404031