TY  - BOOK
AU  - Hansen,Dan E.
TI  - Subsurface correlations of the Cretaceous Greenhorn-Lakota interval in North Dakota
AV  - QE685 .H22
U1  - 551.77551.76* 
PY  - 1955///
CY  - Grand Forks
KW  - Geology, Stratigraphic
KW  - Cretaceous
KW  - Geology
KW  - North Dakota
N1  - Bibliographical footnotes
ER  -