Two plot transfer devices developed for aerial photographic forest insect trend surveys
By: by R.C. Aldrich
Contributors: United States. Forest Service
Series: U.S. Forest Service research note WO -- 3; U.S. Forest Service research note WO -- 3.
Publisher: U.S. Dept. of Agriculture
Published: 1964
Place of publication: Washington, D.C
Language: eng
Subjects: Insects; Aerial photography in forestry