Books by Phillip G. Pigott:
Books in the extended shelves:
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Pigott, Phillip G.: Refractory properties of Alabama bauxitic kaolins (U.S. Dept. of the Interior, Bureau of Mines, 1959), also by Miles E. Tyrrell (page images at HathiTrust)- Pigott, Phillip G.: Steam-cured bricks from industrial mineral wastes (U.S. Bureau of Mines, 1974), also by Karl Clyde Dean, E. G. Valdez, Salt Lake City Metallurgy Research Center (U.S.), and United States Bureau of Mines (page images at HathiTrust)
Find more by Phillip G. Pigott at your library, or elsewhere.