Historical statistics of Pennsylvania's mineral industries, 1956-1960
Series: Bulletin of the Mineral Industries Experiment Station, Pennsylvania State University, no. 79.  Mineral conservation series.
Publisher: College of Mineral Industries, Pennsylvania State University
Published: 1963
Place of publication: University Park
Language: eng
Number of pages: 80
Subjects: Mines and mineral resources -- Pennsylvania -- Statistics.
Genres: Statistics.