Economic geology of the Georgetown quadrangle (together with the Empire district) Colorado, by Josiah E. Spurr and George H. Garrey: with general geology, by Sydney H. Ball.
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TextPublication details: Washington, Govt. Print. Off., 1908.Description: 422 p. illus., LXXXVII pl. (part fold., incl. maps, plans) diagrs. 29 x 23 cmSubject(s): DDC classification: - 557.3
- TN24.C6 S8 no. 63
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Four folded plates, including 2 maps, in pocket.
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