Properties and uses of shales and clays, southwestern Pennsylvania /

by O'Neill, Bernard J., 1920-
Harrisburg : Pennsylvania Geological Survey, 1979

Report on the clays of Maryland.

by Ries, Heinrich, 1871-1951
Baltimore : The Johns Hopkins Press, 1902

Chemistry of clays and clay minerals /

New York : London, England : Wiley ; Mineralogical Society, 1987

Native clays and glazes for North American potters : a manual for the utilization of local clay and glaze materials /

by Mason, Ralph S.
Portland, Or. : Timber Press, 1981