Mineral collecting in Pennsylvania
By: by Davis M. Lapham [and] Alan R. Geyer.  Illustrated by Albert E. Van Olden.
Contributors: Geyer, Alan R., joint author.
Edition: 2d ed.
Series: Pennsylvania. Bureau of Topographic and Geologic Survey. Bulletin G33; Bulletin G,; 33.
Publisher: [Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey]
Published: 1965
Place of publication: Harrisburg
Language: eng
Number of pages: 148
Subjects: Mineralogy -- Pennsylvania.; Minerals -- Collection and preservation.
Notes: Includes bibliographies.
At head of title: Pennsylvania Geological Survey, Fourth series.