Kim, Jae Ho2015-05-122015-05-121967https://scholarworks.montana.edu/handle/1/5549enDichlorophenoxyacetic acidThistlesHerbicidesWeeds--ControlTranslocation of 2,4-dichlorophenoxyacetic acid in three Canada thistle (Cirsium arvense [L.] Scop.) ecotypesThesisCopyright 1967 by Jae Ho Kim