The Abney level handbook
By: by H.A. Calkins and J.B. Yule
Contributors: Yule, J. B. (James Gillespie Blaine), 1884-; United States. Forest Service
Publisher: U.S. Govt. Print Off.
Published: 1935
Place of publication: Washington
Language: eng
Number of pages: 44
Subjects: Clinometer
Notes: At head of title: United States Department of Agriculture. Forest Service.