Fire clays of Pennsylvania /

Bibliographic Details
Main Author:	Shaw, J. B. (Joseph Bradfield), 1884-
Format:	Book
Language:	English
Published:	[Harrisburg], [publisher not identified] ; [1928]
Series:	Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ; M10.
Subjects:	Fire-clay. Clay > Pennsylvania.

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