Authors: Cox, L.R. --- Newell, N.D. --- Boyd, D.W. --- Branson, Carl Colton --- Casey, Raymond, C.C. --- et al. Chavan, André, C.C. --- Coogan, A.H. --- Dechaseaux, Colette, A.H. --- Fleming, C.A. --- Haas, Fritz, C.A. --- Hertlein, L.G. --- Kauffman, E.G. --- Keen, Myra A. --- LaRocque, Aurèle A. --- MacAlester, A.L. --- Moore, R.C. --- Nuttall, C.P. --- Perkins, B.F. --- Puri, H.S. --- Smith, L.A. --- Soot-Ryen, T. --- Stenzel, H.B. --- Trueman, E.R. --- Turner, Ruth D. --- Weir, John D.
Year: 1969 Publisher: Boulder The Geological Society of America ; Lawrence : The University of Kansas

Authors: Cox, L.R. --- Newell, N.D. --- Boyd, D.W. --- Branson, Carl Colton --- Casey, Raymond, C.C. --- et al. Chavan, André, C.C. --- Coogan, A.H. --- Dechaseaux, Colette, A.H. --- Fleming, C.A. --- Haas, Fritz, C.A. --- Hertlein, L.G. --- Kauffman, E.G. --- Keen, Myra A. --- LaRocque, Aurèle A. --- MacAlester, A.L. --- Moore, R.C. --- Nuttall, C.P. --- Perkins, B.F. --- Puri, H.S. --- Smith, L.A. --- Soot-Ryen, T. --- Stenzel, H.B. --- Trueman, E.R. --- Turner, Ruth D. --- Weir, John D.
Year: 1971 Publisher: Boulder The Geological Society of America, Inc. ; Lawrence : The University of Kansas