APA (7th ed.) Citation

Will, R. W., & Krohn, W. B. (1989). Hand signs for technical terms used in thematic and topographic mapping. Dept. of the Interior, U.S. Geological Survey ; Free on application to Books and Open-File Reports Section.

Chicago Style (17th ed.) Citation

Will, Richard W., and William B. Krohn. Hand Signs for Technical Terms Used in Thematic and Topographic Mapping. [Reston, Va.] : Denver, CO: Dept. of the Interior, U.S. Geological Survey ; Free on application to Books and Open-File Reports Section, 1989.

MLA (9th ed.) Citation

Will, Richard W., and William B. Krohn. Hand Signs for Technical Terms Used in Thematic and Topographic Mapping. Dept. of the Interior, U.S. Geological Survey ; Free on application to Books and Open-File Reports Section, 1989.