Based on work done in cooperation with the University of Wyoming.Bibliography: p. 21-23.Mode of access: Internet
Based on work done in cooperation with the University of Wyoming.Includes bibliographyMode of access...
Based on work done in cooperation with the University of Wyoming.Includes bibliographical references...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 15.Mode of access:...
Based upon work done under a cooperative agreement between the Bureau of Mines and the University of...
Based on work done in cooperation with the University of Wyoming.Includes bibliography.Mode of acces...
"March 1971"--Cover.Based on work done in cooperation with the University of Wyoming.Bibliography: p...
Based upon work done under a cooperative agreement between the Bureau of Mines and the University of...
"Based on work done in cooperation with the University of Wyoming."Includes bibliographical referenc...
Based on work done in cooperation with the University of Wyoming.Includes bibliographical references...
Work done under a cooperative agreement between the Bureau of Mines and the University of Wyoming.Bi...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 16-17.Mode of acce...
"January 1968"--Cover.Performed in cooperation with the University of Wyoming.Bibliography: p. 13.Mo...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 26-27.Mode of acce...
"August 1969"--Cover.Based on work done in cooperation with the University of Wyoming.Bibliography: ...
Based upon work done under a cooperative agreement between the Bureau of Mines and the University of...
Based on work done in cooperation with the University of Wyoming.Includes bibliographyMode of access...
Based on work done in cooperation with the University of Wyoming.Includes bibliographical references...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 15.Mode of access:...
Based upon work done under a cooperative agreement between the Bureau of Mines and the University of...
Based on work done in cooperation with the University of Wyoming.Includes bibliography.Mode of acces...
"March 1971"--Cover.Based on work done in cooperation with the University of Wyoming.Bibliography: p...
Based upon work done under a cooperative agreement between the Bureau of Mines and the University of...
"Based on work done in cooperation with the University of Wyoming."Includes bibliographical referenc...
Based on work done in cooperation with the University of Wyoming.Includes bibliographical references...
Work done under a cooperative agreement between the Bureau of Mines and the University of Wyoming.Bi...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 16-17.Mode of acce...
"January 1968"--Cover.Performed in cooperation with the University of Wyoming.Bibliography: p. 13.Mo...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 26-27.Mode of acce...
"August 1969"--Cover.Based on work done in cooperation with the University of Wyoming.Bibliography: ...
Based upon work done under a cooperative agreement between the Bureau of Mines and the University of...
Based on work done in cooperation with the University of Wyoming.Includes bibliographyMode of access...
Based on work done in cooperation with the University of Wyoming.Includes bibliographical references...
Based on work done in cooperation with the University of Wyoming.Bibliography: p. 15.Mode of access:...