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Geology of the Istarú quadrangle, Costa Rica

Krushensky, R. D., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1972. 1973

Geology of the Karalar-Yeiller Area, northwest Anatolia, Turkey

Krushensky, R. D., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1980. 1980

Proceedings of a Workshop on Development of Mineral, Energy, and Water Resources and Mitigation of G

Workshop on Development of Mineral, Energy, and Water Resources and Mitigation of Geologic Hazards in Central America (1985 : Antigua, Guatemala)
[Washington, D.C.] : U.S. G.P.O. ; Denver, CO : Books and Open-File Reports Section, U.S. Geological Survey, 1987. 1987