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	1.	The brown iron ores of eastern Texas, by Edwin B. Eckel. by Eckel, Edwin Butt, 1906- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, U.S. Govt. Print. Off., 1938 Availability: No items available. Add to cart (remove)
	2.	Geology and ore deposits of the La Plata district, Colorado, by Edwin B. Eckel with sections by J. S. Williams, F. W. Galbraith and others. Prepared in cooperaton with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund. by Eckel, Edwin Butt, 1906- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, U.S. Govt. Print. Off., 1949 Availability: No items available. Add to cart (remove)
	3.	Geology and mineral resources of Paraguay, a reconnaissance. / With sections on igneous and metamorphic rocks by Charles Milton and Edwin B. Eckel. Soils by Pedro Tirado Sulsona. Prepared in cooperation with the Departamento de Geología, Ministério de Obras Públicas y Comunicaciones, República del Paraguay, under the auspices of the Institute of Inter-American Affairs. by Eckel, Edwin Butt, 1906- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington : U.S. Govt. Print. Off., 1959 Availability: No items available. Add to cart (remove)
	4.	Opportunities and responsibilities of earth scientists in the nuclear age. by Eckel, Edwin Butt, 1906- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, 1960 Availability: No items available. Add to cart (remove)
	5.	Minerals of Colorado : a 100-year record / by Edwin B. Eckel. by Eckel, Edwin Butt, 1906- Series: Geological Survey bulletin ; 1114 Material type: Text; Format: print ; Literary form: Not fiction Publication details: Washington, [D.C.] : U.S. G.P.O., 1961 Availability: No items available. Add to cart (remove)

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