00936cam a22002651 4500 gs 31000122 DLC 20260227111335.0 761216s1931 nbuab s001 0 eng c gs 31000122 (OCoLC)2627500 U. S. Geol. Survey. Libr. TxWB DLC premarc QE135 .A4 no. 4 553.28 Condra, Geo. E. (George Evert), 1869-1958. Deep wells of Nebraska, by G. E. Condra. E. F. Schramm [and] A. L. Lugn. [Lincoln] Printed by authority of the state of Nebraska, 1931. 288 p. incl. illus., maps, tables. 25 cm. Nebraska. Geological survey. Bulletin 4, second ser. At head of title: The University of Nebraska. Petroleum Nebraska. Natural gas Nebraska. Nebraska Geological Survey. Bulletin ; no. 4. 26871 26871