000 00349nam a2200145Ia 4500
008 220216s9999 xx 000 0 und d
100 _aWatson G A
245 0 _aCover plants, weeds and weedkillers
260 _bPlanters Bulletin
_c1963
300 _a191-195
650 _aCover crops
650 _aWeed control
650 _aWeeds
942 _cJS
999 _c56480
_d56480