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History of geologic investigations, engineering design, and construction methods of the Harold D. Roberts Tunnel, Colorado / by Ernest E. Wahlstrom.

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BookSeries: Geological Survey Professional Paper; 831-A.Publisher: Washington : United States Government Printing Office, 1974Description: 13 p. + map. --.Content type: Texto (visual) Media type: sin mediación Subject(s): Colorado | Geología

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Item type	Current location	Call number	Status	Date due
Libros	Biblioteca Aranzadi Biblioteca General	55(788) WAH (Browse shelf)	Available

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Previous	55(788) SEA Yampa canyon in the Uinta mountains Colorado /	55(788) SIM Economic geology of the Central city district Gilpin County, Colorado /	55(788) STE Critical review of the San Juan peneplain Southwestern Colorado /	55(788) WAH History of geologic investigations, engineering design, and construction methods of the Harold D. Roberts Tunnel, Colorado /	55(788) WAN Geology and fuel resources of the Mesa Verde Area Montezuma and La Plata counties, Colorado /	55(788) WOO Geology and coal resources of the Starkville-Weston area Las Animas county Colorado /	55(788)"624/627" YEE Quaternary geology of the grand and battlement Mesas area, Colorado /	Next

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