Naturalist notes
By: [prepared by Roscoe T. Files, illustrations by Don A. Oliver]
Contributors: Oliver, Don A; United States. Forest Service
Publisher: Forest Service, U.S. Dept. of Agriculture
Published: 1981
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 27
Subjects: Nature study -- Handbooks, manuals, etc
Notes: Cover title

Bibliography: p. 21