Unknown
Anderson, Walter A.
;
Kelley, Joseph T.
;
Thompson, Woodrow B.
;
[et al.]
Borns, Harold W.
;
Sanger, David
;
Smith, David C.
;
Tyler, David A.
;
Anderson, R. Scott
;
Bridges, Anne E.
;
Crossen, Kristine J.
;
Ladd, Jonathan W.
;
Andersen, Bjorn G.
;
Lee, Fitzhugh T.
Geological Society of America