Matheson Library
Empowering Knowledge, Inspiring Discovery

Subsidence over four room-and-pillar sections in southwestern Pennsylvania / by Noel N. Moebs.

By: Material type: TextTextSeries: Publication details: Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1982.Description: 23 p. : ill. ; 28 cmSubject(s): DDC classification:
  • 622.8
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