@article{101866, recid = {101866}, title = {Third symposium on surface mining and reclamation : [volumes I and II.]}, publisher = {National Coal Association,}, address = {[Washington, D.C. :}, pages = {2 v. :}, year = {1975}, note = {Papers presented before the Third Symposium on surface mining and Reclamation.}, url = {http://library.usi.edu/record/101866}, }