00321 a2200109 4500082001500000245004200015260005800057300001800115440003200133650001000165650003600175 a632.5bSUG aSuggested guide for weed control 1969 aWashingtonbAgricultural Research Servicec1969g1969 aiv,70p.c26cm aAgriculture handbook No.332 aWeeds aPlant injuries, diseases, pests