Principles of selective weed control Ashton, Floyd M. creator Harvey, W. A. (William Alfred), 1914-1989 contributor Foy, Chester L. contributor text book [Berkeley, Calif.] Division of Agricultural Sciences, University of California 1961 1961
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ENG Control Weeds Circular (California Agricultural Experiment Station), 505 https://www.biodiversitylibrary.org/bibliography/61075 10.5962/bhl.title.61075 RQF