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	1.	Insoluble residues of some Paleozoic formations of Missouri, their preparation, characteristics and application, by John G. Grohskopf and Earl McCracken. by Grohskopf, John Gustave, 1903- McCracken, Earl [joint author.] Series: Missouri. Report of investigations ; no. 10. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Rolla, 1949 Availability: No items available. Add to cart (remove)
	2.	Geology of Boone County, Missouri. by Unklesbay, A. G. (Athel Glyde), 1914- Searight, Walter Vernon, 1896- [joint author.] Grohskopf, John Gustave, 1906- Series: Missouri. [Reports] ; v. 33, 2d ser. Material type: Text; Format: print ; Literary form: Not fiction Publication details: Rolla, 1952 Availability: No items available. Add to cart (remove)
	3.	Subsurface geology of the Mississippi embayment of southeast Missouri. by Grohskopf, John Gustave, 1903- Material type: Text; Format: print ; Literary form: Not fiction Publication details: Rolla, Mo., 1955 Availability: No items available. Add to cart (remove)

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