00430nam a2200145Ia 4500008004100000082002800041100002200069245004000091250000900131260003200140490005700172650001500229650001700244700002300261220204s9999    xx            000 0 und d  a632.51:631.348.4bCRA;2  aCraftsm,  Alden S 0aWeed control: A textbook and manual  aEd.3  aNew YorkbMcGraw Hillc1962  aMcGraw Hill publcations in the agricultural sciences  aHerbicides  aWeed control  aRobbins, Wilfred W