Future of Pennsylvania's mineral industries / By Edward Steidle.
APA Citation
Steidle, E. (1946). Future of Pennsylvania's mineral industries / By Edward Steidle. State College, Pa.: School of Mineral Industries.
MLA Citation
Steidle, Edward, 1887-. Future of Pennsylvania's Mineral Industries / By Edward Steidle. State College, Pa.: School of Mineral Industries, 1946.
Warning: These citations may not always be complete (especially for serials).