000 00411nam a2200157Ia 4500
008 170101s1968 xx 000 0 und d
082 _a624.151 G36S
100 _aGILL, William R
245 0 _aSoil dynamics in tillage and traction
260 _bWashington
_c1968
300 _a511
440 _aUSDA Agriculture handbook no. 316
650 _aSOIL MECHANICS
653 _aSOIL MECHANICS
942 _2ddc
_cB
999 _c73367
_d73367