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	1.	The iron ores of the Iron Springs district, southern Utah. by Leith, C. K. (Charles Kenneth), 1875-1956 Harder, Edmund Cecil, 1882- [joint author.] Material type: Text; Format: print ; Literary form: Not fiction Publication details: Govt. Print. Off., 1908 Availability: No items available. Add to cart (remove)
	2.	Manganese deposits of the United States with sections on foreign deposits, chemistry, and uses, by Edmund Cecil Harder. by Harder, Edmund Cecil, 1882- Series: Geological Survey (U.S.). Bulletin ; 427. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, Govt. print. off., 1910 Availability: No items available. Add to cart (remove)
	3.	Iron-ore deposits of the Eagle Mountains, California / by Edmund Cecil Harder. by Harder, Edmund Cecil, 1882- Series: United States. Bulletin ; 503. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, Govt. Print. Off., 1912 Availability: No items available. Add to cart (remove)

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