@article{13492, recid = {13492}, title = {Environmental assessment of surface mining methods Head-of-hollow fill and mountaintop removal,}, publisher = {Environmental Protection Agency, Office of Research and Development, [Office of Energy, Minerals, and Industry], Industrial Environmental Research Laboratory,}, address = {Cincinnati, Ohio :}, pages = {v.}, year = {1979}, url = {http://library.usi.edu/record/13492}, }