Geology and petrology of the San Juan region, southwestern Colorado /

Bibliographic Details
Main Authors:	Larsen, Esper S. (Esper Signius), 1879-1961, Cross, Whitman, 1854-1949 (Author)
Format:	Government Document Book
Language:	English
Published:	Washington : U.S. Govt. Print. Off, 1956.
Series:	Professional paper (Geological Survey (U.S.)) ; 258.
Subjects:	Geology > Colorado. Petrology > Colorado. San Juan Mountains (Colo. and N.M.)

by Larsen, Esper S. (Esper Signius), 1879-1961, Cross, Whitman, 1854-1949
Published 1956

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