ScienceDirect (Online service), Hanley, J. T., & Merriam, D. F. (1990). Microcomputer applications in geology, II (First edition.). New York : Pergamon Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service), J. Thomas Hanley, and Daniel Francis Merriam. Microcomputer Applications in Geology, II. First edition. Oxford [England]: New York : Pergamon Press, 1990.
MLA (9th ed.) CitationScienceDirect (Online service), et al. Microcomputer Applications in Geology, II. First edition. New York : Pergamon Press, 1990.
Warning: These citations may not always be 100% accurate.