Gurnee, R. H., & Gurnee, J. (1980). Gurnee guide to American caves: A comprehensive guide to the caves in the United States open to the public. Teaneck, N.J.: Zephyrus Press, Inc..
Chicago Style CitationGurnee, Russell H., and Jeanne Gurnee. Gurnee Guide to American Caves: A Comprehensive Guide to the Caves in the United States Open to the Public. Teaneck, N.J.: Zephyrus Press, Inc., 1980.
MLA CitationGurnee, Russell H., and Jeanne Gurnee. Gurnee Guide to American Caves: A Comprehensive Guide to the Caves in the United States Open to the Public. Teaneck, N.J.: Zephyrus Press, Inc., 1980.
Warning: These citations may not always be 100% accurate.