State of Hidalgo, Mexico Simons, Frank S. (Frank Stanton) 1917- creator Mapes Vázquez, Eduardo joint author. text bibliography dcu Washington U.S. Govt. Print. Off. 1956 monographic eng

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vi, 128 p. illus., maps, (part fold., part col.) 29 cm. by Frank S. Simons and Eduardo Mapes V. Prepared in cooperation with the Instituto Nacional para la Investigación de Recursos Minerales of Mexico, under the auspices of the Technical Cooperation Administration of the Dept. of State. Part of illustrative matter in pocket. Bibliography: p. 123-124. Geology Mexico Hidalgo (State) Mines and mineral resources Mexico Hidalgo (State) QE75 .P9 no. 284 I 19.16:284 I 19.16:284 gs 56000164 U.S. Geol. Survey Library 761028 20260227111404.0 gs 56000164