The control of aquatic and marginal weeds :
notes and abstracts from the 7th annual meeting of the Weed Science Society of America /
by Leon D. Johnson.

APA Citation

Johnson, L. D., University of Wisconsin--Madison. Libraries., Wisconsin. Conservation Dept. Research and Planning Division. (1967). The control of aquatic and marginal weeds: notes and abstracts from the 7th annual meeting of the Weed Science Society of America. [Madison, Wis.]: Conservation Department, Research and Planning Division.

MLA Citation

Johnson, Leon D, University of Wisconsin--Madison. Libraries, and Wisconsin. Conservation Dept. Research and Planning Division. The Control of Aquatic And Marginal Weeds: Notes And Abstracts From the 7th Annual Meeting of the Weed Science Society of America. [Madison, Wis.]: Conservation Department, Research and Planning Division, 1967.