TY  - BOOK
AU  - Knappen,Russell Stafford
TI  - Geology and mineral resources of the Dixon quadrangle,
T2  - Illinois. State geological survey. Bulletin
AV  - QE105 .A16 no. 49
PY  - 1926///
CY  - Urbana, Ill.
PB  - [Schnepp & Barnes, printers, Springfield]
KW  - Geology
KW  - Illinois
KW  - Lee County
KW  - Ogle County
KW  - Mines and mineral resources
N1  - At head of title: State of Illinois. Department of registration and education. Division of the State geological survey; Published also as thesis (Ph. D.) Columbia university, 1927; Plates I-II folded in pocket; Bibliographical references
ER  -