Digital line graphs from 1:100,000-scale maps.
Contributors: Geological Survey (U.S.)
Edition: 2nd printing (rev.)
Series: Data users guide -- 2
Publisher: United States Dept. of the Interior, U.S. Geological Survey
Published: 1989
Place of publication: Reston, Va
Language: eng
Number of pages: 88
Subjects: Digital mapping -- Standards.
Notes: "National Mapping Program technical instructions"--Cover.