Weed control in western irrigation and drainage systems : losses caused by weeds : costs and benefits of weed control - Timmons, F. L. (Francis Leonard),; United States. Agricultural Research Service.; United States. Bureau of Reclamation. ([Beltsville, Md.], U.S. Dept. of Agriculture, Agricultural Research Service, 1960)
https://www.biodiversitylibrary.org/bibliography/70276
Keywords: Control|Irrigation canals and flumes|Weeds|