APA (7th ed.) Citation

Schornick, J. C., & Geological Survey (U.S.). (1989). An Indexing and classification system for earth-science data bases. Dept. of the Interior, U.S. Geological Survey : Books and Open-file Reports Section [distributor].

Chicago Style (17th ed.) Citation

Schornick, James C., and Geological Survey (U.S.). An Indexing and Classification System for Earth-science Data Bases. Denver, Colo.: Dept. of the Interior, U.S. Geological Survey : Books and Open-file Reports Section [distributor], 1989.

MLA (8th ed.) Citation

Schornick, James C., and Geological Survey (U.S.). An Indexing and Classification System for Earth-science Data Bases. Dept. of the Interior, U.S. Geological Survey : Books and Open-file Reports Section [distributor], 1989.