Problems and trends in the mineral industries of Pennsylvania
By: by W. M. Myers ...
Series: Pennsylvania.  State College.  Mineral Industries Experiment Station.  Bulletin 17 [i.e. 27]; The Pennsylvania state college bulletin,; vol. 33, no. 34, June 26, 1939
Publisher: School of Mineral Industries, The Pennsylvania State College
Published: 1939
Place of publication: State College, Pa
Language: eng
Number of pages: 77
Subjects: Mineral industries -- Pennsylvania.