Browsing Farm Research; 43:6; May/Jun 1986 by Author "Hofman, Vern"
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North Dakota Aerial Spray Analysis Program
McBride, Dean; Kopp, Dennis; Berge, Mark Edwin; Hirning, Harvey; Lamey, Art; Hofman, Vern; McBride, Dean; Kopp, Dennis; Berge, Mark Edwin; Hirning, Harvey; Lamey, Art; Hofman, Vern (North Dakota State University, 1986)