Case study of the effects of longwall mining induced subsidence on shallow ground water sources in the northern Appalachian coalfield /
by J.S. Walker.
APA Citation
Walker, J. S. (1988). Case study of the effects of longwall mining induced subsidence on shallow ground water sources in the northern Appalachian coalfield. Pittsburgh, PA: U.S. Dept. of the Interior, Bureau of Mines.
MLA Citation
Walker, Jeffrey S. Case Study of the Effects of Longwall Mining Induced Subsidence On Shallow Ground Water Sources In the Northern Appalachian Coalfield. Pittsburgh, PA: U.S. Dept. of the Interior, Bureau of Mines, 1988.
Warning: These citations may not always be complete (especially for serials).