Search U.S. government technical reports digitized or harvested by TRAIL.

Keyword Search

Estimate of known recoverable reserves of coking coal in Clearfield County, Pa.

Published Year

• 1950-1959 (1)

Subject

• Coal--Pennsylvania (1)
• Coking coal (1) *

Author

• Abernethy, R. F. (1)
• Blaylock, D. W. (1)
• Dowd, J. J. (1)
• Reynolds, D. A. (1) *

• About TRAIL
• FAQ
• Join TRAIL
• Contact Us

Search developed and maintained by the University of Washington Libraries
Copyright 2010