Evaluation of 35mm vertical aerial photography for estimating tree mortality
By: [by Ralph E. Williams].
Contributors: United States. Forest Service. Northern Region. State & Private Forestry.
Series: Forest environmental protection; Report - Forest Service, Northern Region, Forest Environmental Protection -- no. 75-22.; Report (United States. Forest Service. Northern Region) -- no. 75-22.
Publisher: Forest Environmental Protection, USDA, Forest Service, Northern Region, State & Private Forestry
Published: 1975
Place of publication: Missoula, MT
Language: eng
Number of pages: 18
Subjects: Aerial photography in forestry.; Dead trees -- Measurement.
Notes: Cover title.

Bibliography: p. 18.

Also issued online.