00816cam a22002651 4500 gs 36000027 DLC 20260227111340.0 780302s1935 ksua 000 0 eng c gs 36000027 (OCoLC)3684944 U. S. Geol. Survey. Library. TxEU DLC premarc QE113 .A2 no. 20 551.7 Ockerman, John William, 1900- Subsurface studies in northeastern Kansas. Lawrence, Kansas, 1935. 78 p. ill. maps (part fold.) diagrs. 23 cm. Kansas Geological Survey Bulletin 20 Bulletin of the University of Kansas, v. 36, no. 9. Bibliography: p. 78. Geology Kansas. Geology, Stratigraphic. 27238 27238