TY  - BOOK
AU  - Morgan,George Dillon
TI  - A Siluro-Devonian oil horizon in southern Oklahoma,
T2  - Oklahoma.  Geological Survey.  Circular
AV  - QE153 .A3 no. 10
U1  - 557/.66 
PY  - 1922///
CY  - Norman
KW  - Geology
KW  - Oklahoma
N1  - Research and field investigation series.  Paper no. 1
ER  -