Kropff M J Ed Modelling crop-weed interactions Kropff M J Ed; Van Laar H H Ed - Wallingford CAB International 1993 - xvi,274p ISBN: 0851987451 (hbd) Standard No.: 3653 Source: Jagmander, Textual Subjects--Topical Terms: Weed controlAgriculture Dewey Class. No.: J:57, N3