000 00492nam a2200157Ia 4500
008 170101s1962 xx 000 0 und d
082 _a631.31 T30E
100 _aThaer, R.
245 0 _aExperiments with ridgers of different pitch and side angles
260 _aBedford, U.K.
_bNational Institute of Agricultural Engineering
_c1962
300 _a34cm. 23L
650 _aAGRICULTURAL IMPLEMENTS
653 _aAGRICULTURAL ENGINEERING
653 _aAGRICULTURAL IMPLEMENTS
942 _2ddc
_cB
999 _c55856
_d55856