Rocks and minerals of Pennsylvania
By: by John H. Barnes.
Contributors: Lapham, Davis M.; Geyer, Alan R.
Edition: 4th ed.
Series: Educational series -- 1; Educational series (Pennsylvania. Bureau of Topographic and Geologic Survey) -- 1.
Publisher: Commonwealth of Pennsylvania, Dept. of Conservation and Natural Resources, Ofiice of Conservaiton and Engineering Services, Bureau of Topographic and Geologic Survey
Published: 2004
Place of publication: Harrisburg [Pa.]
Language: eng
Number of pages: 30
Subjects: Mineralogy -- Pennsylvania -- Popular works; Petrology -- Pennsylvania -- Popular works; Mineralogy -- Popular works; Petrology -- Popular works
Genres: Popular works
Notes: First ed. published as: Common rocks and minerals of Pennsylvania / by  Davis M. Lapham, Alan R. Geyer. 1962.

Includes bibliographical references (p. 30).

Also available online