Help for environmental programs
Contributors: United States. Dept. of Agriculture; United States. Forest Service
Edition: Rev. Sept. 1980
Series: Program aid / Forest Service -- no. 979; Program aid (United States. Dept. of Agriculture) -- no. 979
Publisher: U.S. Dept. of Agriculture
Published: 1980
Place of publication: [Washington, D.C.?]
Language: eng
Subjects: Conservation of natural resources -- Study and teaching -- United States; Ecology -- Study and teaching -- United States