TY  - BOOK
AU  - Carlson,C.G.
AU  - Eastwood,William Parker
TI  - Upper Ordovician and Silurian rocks of North Dakota,
AV  - QE149 .C3
PY  - 1962///
CY  - Grand Forks
KW  - Geology
KW  - North Dakota
KW  - Geology, Stratigraphic
KW  - Ordovician
KW  - Silurian
N1  - Part of illustrative matter fold. in pocket; Bibliography: p. 23-26
ER  -