Neuvième Congrès international de stratigraphie et de géologie du carbonifère, Washington and Champaign-Urbana, May 17-26, 1979 ; edited by Mackenzie Gordon, JrSouthern Illinois University Pressc1984
Neuvième Congrès international de stratigraphie et de géologie du carbonifère, Washington and Champaign-Urbana, May 17-26, 1979 ; edited by Patrick K. Sutherland and Walter L. MangerSouthern Illinois University Pressc1984
edited by Helmut H.J. Geldestzer . edited by Walter W. Nassichuk . edited by Edward S. Belt and Roger W. MacqueenSouthern Illinois University Press1984
general editor, Carlos Martinez Diaz ; editors, Robert H. Wagner, Cor. F. Winkler Prins, Luis F. GranadosInstituto Geologico y Minero de España[1983]-[1996]