Use of chart readers for analog to digital conversion of hydrologic data
By: by Herbert B. Osborn
Series: ARS -- 41-81; ARS (Series) (United States. Agricultural Research Service) -- 41-81.
Publisher: Agricultural Research Service, U.S. Dept. of Agriculture
Published: 1963
Place of publication: [Washington]
Language: eng
Number of pages: 12
Subjects: Hydrological instruments
Notes: Cover title.

"June 1963."