Releasing conifers in the Lake States with chemicals /
[by John L. Arend and Eugene I. Roe].
- Washington, D.C. : U.S. Dept. of Agriculture, Forest Service, 1961.
- 22 p. : ill. ; 24 cm.
- Agriculture handbook / United States Department of Agriculture ; no. 185 .
- Agriculture handbook (United States. Department of Agriculture) ; no. 185. .
Preliminary edition, How to release conifers in the Lake States with chemicals, issued Apr. 1960.