How to know and control stored-grain insects
Farrar, M.D., Winburn, T.F., Flint, W.P.
How to know and control stored-grain insects - Illinois 1941 - 15 p. - Illinois College of Agriculture. Circular No. 512 .
Insects
How to know and control stored-grain insects - Illinois 1941 - 15 p. - Illinois College of Agriculture. Circular No. 512 .
Insects