TY  - BOOK
AU  - Moulton,Gail Francis
TI  - Proper testing for oil structures in Illinois and some areas deserving such testing,
AV  - TN871 .M6
PY  - 1925///
CY  - Urbana, Ill.
KW  - Petroleum
KW  - Illinois
KW  - Testing
N1  - At head of title: State of Illinois. Department of registration and education. Division of the State geological survey
ER  -