TY  - BOOK
T1  - Silurian reefs of Great Lakes region of North America :selected papers reprinted from Structure of typical American oil fields, vol. III, and AAPG bulletin.
DA  - 1975.
CY  - Tulsa, Okla. :
CN  - QE661
CN  - QE661
PB  - American Association of Petroleum Geologists,
PP  - Tulsa, Okla. :
PY  - 1975.
ID  - 4497
KW  - Geology, Stratigraphic
KW  - Reefs
KW  - Geology
TI  - Silurian reefs of Great Lakes region of North America :selected papers reprinted from Structure of typical American oil fields, vol. III, and AAPG bulletin.
ER  -