Feldspar in Pennsylvania
By: by Ralph W. Stone and H. Herbert Hughes
Contributors: Hughes, H. Herbert (Harry Herbert), 1905- author
Series: Pennsylvania. Bureau of Topographic and Geologic Survey Bulletin -- M13; Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) -- M13.
Publisher: Department of Internal Affairs, Topographic and Geologic Survey
Published: 1931
Place of publication: Harrisburg
Language: eng
Number of pages: 63
Subjects: Feldspar
Notes: Pennsylvania Geological Survey, fourth series.

Bibliographical foot-notes.