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02h0037665 20130508155140.0 s1964 dcuab frb |000|||eng | CNY150.00 NGL n-us-co a423.2 Heyl, Allen. V. Oxidized zinc deposits of the United States. Part 3, Colorado / by Allen V. Heyl. Washington, D.C. : U.S. G.P.O., 1964. vi, 98 p. : ill., maps ; 24 cm. + 6 maps. Geological Survey bulletin ; 1135-C Includes bibliographical references (p. 88-91) and index. Zinc ores ; Zinc mines and mining Colorado. ; Colorado. Geological Survey bulletin ; 1135-C. aCN bNGL 010001 P 254.2 B87 v1135-C ; rCNY150.00 ; h1 wang005