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	1.	Geology of a uranium-bearing black shale of Late Devonian age in north-central Arkansas, by Vernon E. Swanson and Edwin R. Landis. by Swanson, Vernon Emanuel, 1922- Landis, Edwin R. (Edwin Robert), 1926- [joint author.] Geological Survey (U.S.) Series: Information circular (Arkansas Geological Commission) ; 22. Material type: Text; Format: print ; Literary form: Not fiction Publication details: [Little Rock] Arkansas Geological and Conservation Commission, 1962 Availability: No items available. Add to cart (remove)
	2.	Coal resources of Iowa, by E. R. Landis. With a section on the geologic setting by Orville Van Eck. by Landis, Edwin R. (Edwin Robert), 1926- Van Eck, Orville J Material type: Text; Format: print ; Literary form: Not fiction Publication details: [Iowa City, 1965] Availability: No items available. Add to cart (remove)

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