The stratigraphy of the Pennsylvanian system in Nebraska,
Condra, Geo. E. 1869-1958.
The stratigraphy of the Pennsylvanian system in Nebraska, by G. E. Condra. - [Lincoln] Printed by authority of the state of Nebraska [The University of Nebraska press] 1927. - 291 [1] p. incl. illus., tables, diagrs. 23 cm. - Nebraska. Geological survey. Bulletin I, 2d ser. . - Nebraska Geological Survey. Bulletin ; no. 1. .
Bibliographical footnotes.
gs 28000226
Geology, Stratigraphic--Pennsylvanian.
Geology--Nebraska.
QE135 / .A4 no. 1
The stratigraphy of the Pennsylvanian system in Nebraska, by G. E. Condra. - [Lincoln] Printed by authority of the state of Nebraska [The University of Nebraska press] 1927. - 291 [1] p. incl. illus., tables, diagrs. 23 cm. - Nebraska. Geological survey. Bulletin I, 2d ser. . - Nebraska Geological Survey. Bulletin ; no. 1. .
Bibliographical footnotes.
gs 28000226
Geology, Stratigraphic--Pennsylvanian.
Geology--Nebraska.
QE135 / .A4 no. 1