American Society for Surface Mining and Reclamation. National Meeting 1985 : Denver, Colo.)
American Society for Surface Mining and Reclamation. National Meeting (2nd : 1985 : Denver, Colo.)
Williams, Dean.
Fisher, Scott, 1936-
Second Annual Meeting, American Society for Surface Mining and Reclamation : "bridging the gap between science, regulation, and the surface mining operation" : October 8-10, 1985, Clarion Hotel, Denver, Colorado ; co-chairmen, Dean Williams and Scott E. Fisher, Jr. ; American Society for Surface Mining and Reclamation ... [et al.].
Second Annual Meeting, American Society for Surface Mining and Reclamation : "bridging the gap between science, regulation, and the surface mining operation" : October 8-10, 1985, Clarion Hotel, Denver, Colorado ; co-chairmen, Dean Williams and Scott E. Fisher, Jr. ; American Society for Surface Mining and Reclamation ... [et al.].
Second Annual Meeting, American Society for Surface Mining and Reclamation :
American Society for Surface Mining and Reclamation. National Meeting (2nd : 1985 : Denver, Colo.)