Detection of abandoned underground coal mines by geophysical methods.
By: [Prepared] for the Environmental Protection Agency and the Pennsylvania Dept. of Environmental Resources. [Author: Wilson Fisher, Jr.
Contributors: Fisher, Wilson.; United States. Environmental Protection Agency.; Pennsylvania. Dept. of Environmental Resources.
Series: Water pollution control research series
Publisher: U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1972
Place of publication: Washington
Language: eng
Number of pages: 94
Subjects: Acid mine drainage.; Tunnel detection.; Abandoned coal mines.
Notes: Bibliography: p. 81-87.
"14010 EHN 04/71."