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Pocket Gopher Control with Mechanical Burrow Builder Machine
(North Dakota State University, 1960)
Control Rats and Mice
(North Dakota State University, 1963)
Control of-- Ground Squirrels, Prairies Dogs, Field Mice, Pocket Gophers
(North Dakota State University, 1966)
Control Rats and Mice
(North Dakota State University, 1966)
Control Rats and Mice
(North Dakota State University, 1969)