Reference Sources
World weeds : natural histories and distribution by
Call Number: URI Ref SB611 .W39 1997ISBN: 0471047015(cloth:alk.paper)Description, habitat, biology, ecology, agricultural importance, common names, world map of distribution, and illustrations.
Weeds of the United States and Their Control by Call Number: URI Ref SB612 .A2 L67 1987ISBN: 0442258844Description, habitat, range map and methods of control for each species. Color photographs. An excellent table cross-indexes each crop species with herbicides and modes of application.- Weeds by Call Number: URI Ref SB612 .A2 M8 1980ISBN: 0801412668Descriptions of over 500 weeds. Part I concerns weeds and their control. Part II arranges weeds by family, with key. Most comprehensive survey of weeds of the United States and Canada.