Fire clays of Pennsylvania
By: by J.B. Shaw
Series: Pennsylvania. Bureau of Topographic and Geologic Survey Bulletin -- M10; Bulletin M -- 10.
Publisher: Pennsylvania Topographic and Geologic Survey
Published: 1928
Place of publication: Harrisburg
Language: eng
Number of pages: 69
Subjects: Fire-clay; Clay
Notes: Includes bibliographical references (p. 66-69).