000 00331nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aAldrich, R.J.
245 _aChickweed control in alfalfa
260 _aWashington
_c1957
300 _a1-14 p.
440 _aUnited States Department of A
901 _a58856
942 _cB
_2udc
999 _c10057
_d10057