A syllabus of Pennsylvania geology and mineral resources /

Bibliographic Details
Main Author:	Ashley, Geo. H. (George Hall), 1866-1951
Format:	Book
Language:	English
Published:	Harrisburg : Department of Internal Affairs, Topographic and Geologic Survey, 1931.
Series:	Bulletin (Pennsylvania. Bureau of Topographic and Geologic Survey) ; G1.
Subjects:	Geology > Pennsylvania. Mines and mineral resources > Pennsylvania. Geology > Pennsylvania > Bibliography.

Description
Physical Description:	159 pages, 1 unnumbered page including illustrations, maps, tables, diagrams : II plate (folded color map, folded tables)
Bibliography:	"Publications of the present [Pennsylvania] Geological Survey": pages 147-150. "Publications of the second Geological Survey": pages 152-154. "List of U.S. Geological Survey publications on Pennsylvania": pages 155-158.