Citation: Skehan, J.W., Murray, D.P., Hepburn, J.C., Billings, M.P., Lyons, P.C. & Doyle, R.G. 1979 The Mississippian and Pennsylvanian systems in the United States - Massachusetts, Rhode Island and Maine. Professional Papers of the United States Geological Survey 1110A: A1-A31
Number of Pages: 31
Keywords: Geology, USA