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	1.	The geology and ore deposits of Ely, Nevada / Arthur C. Spencer. by Spencer, Arthur C. (Arthur Coe), 1871-1964 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington : Govt. Print. Off., 1917 Availability: No items available. Add to cart (remove)
	2.	Geology of the Santa Rita mining area, New Mexico, by A.C. Spencer and Sidney Paige. by Spencer, Arthur C. (Arthur Coe), 1871-1964 Paige, Sidney, 1880- [joint author] Series: U.S. Geological survey. Bulletin 859 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, U.S. Govt. Print. Off., 1935 Availability: No items available. Add to cart (remove)

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