TY  - BOOK
AU  - Tisdale,Ernest Edward
TI  - The geology of the Heart Butte quadrangle,
AV  - QE149 .T55
U1  - 557.84 
PY  - 1941///
CY  - Grand Forks, N.D.
PB  - U. N. D. Press
KW  - Geology
KW  - North Dakota
KW  - Sand
KW  - Sedimentation and deposition
N1  - Bibliography: p. 31-32
ER  -