The geological section of Nebraska,
Condra, Geo. E. 1869-1958.
The geological section of Nebraska, by G. E. Condra and E. C. Reed. Current revisions, by E. C. Reed. - Lincoln, University of Nebraska, Conservation and Survey Division, 1959. - vii, 82 p. illus., maps. 25 cm.
Includes bibliographies.
gs 68000016 //r882
Geology--Nebraska.
Geology, Stratigraphic.
QE135.A4
The geological section of Nebraska, by G. E. Condra and E. C. Reed. Current revisions, by E. C. Reed. - Lincoln, University of Nebraska, Conservation and Survey Division, 1959. - vii, 82 p. illus., maps. 25 cm.
Includes bibliographies.
gs 68000016 //r882
Geology--Nebraska.
Geology, Stratigraphic.
QE135.A4