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- catalog abstract ""Good rotations and efficient farm practices will subdue weeds. Three main principles of weed control must be observed: (1) prevent weeds from maturing seed on the farm, (2) prevent the introduction of weeds on the farm, and (3) prevent perennial weeds from making top growth."--Title page verso.".
- catalog contributor b1971.
- catalog contributor b1972.
- catalog created "1939]".
- catalog date "1939".
- catalog date "1939]".
- catalog dateCopyrighted "1939]".
- catalog description ""Good rotations and efficient farm practices will subdue weeds. Three main principles of weed control must be observed: (1) prevent weeds from maturing seed on the farm, (2) prevent the introduction of weeds on the farm, and (3) prevent perennial weeds from making top growth."--Title page verso.".
- catalog description "Includes bibliographical references.".
- catalog extent "29 p. :".
- catalog isPartOf "Farmers' bulletin (United States. Department of Agriculture) ; no. 660.".
- catalog isPartOf "Farmers' bulletin ; no.660".
- catalog issued "1939".
- catalog issued "1939]".
- catalog language "eng".
- catalog publisher "[Washington, D.C.] : U.S. Dept. of Agriculture : [for sale by the Supt. of Docs.,".
- catalog subject "Weeds Control.".
- catalog title "Weeds : how to control them / [by H.R. Cox]".
- catalog type "text".