Grasshoppers : their habits and damage /
by J.R. Parker and R.V. Connin.
- Washington, D.C. : U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., [1964]
- 28 p. : ill., 1 map ; 24 cm.
- Agriculture information bulletin ; no. 287 .