TY  - BOOK
T1  - Geological aspects of prospectingand areas for prospecting in the zinc-lead district of northwestern Illinois,
DA  - 1946.
CY  - Urbana, Ill.,
AU  - Willman, H. B.
AU  - Reynolds, Robert Ramon,
AU  - Herbert, Paul,
VL  - 116
CN  - TN483.I3
CN  - TN483.I3
PP  - Urbana, Ill.,
PY  - 1946.
N1  - At head of title: State of Illinois...Dept. of registration and education...Division of the State geological survey...
N1  - The folded maps are in pocket.
ID  - 18228
KW  - Zinc mines and mining
KW  - Geology
KW  - Prospecting.
TI  - Geological aspects of prospectingand areas for prospecting in the zinc-lead district of northwestern Illinois,
ER  -