| Published | Article |
|---|---|
| 1973 / 10 / 21 | Niagaran Pinnacle Reefs in Michigan Categories: Geology - Silurian (Salina - Guelph) |
| 1970 / 10 / 04 | Lake Erie - Where Innocence is Insufficient Categories: Geology - Silurian (Salina - Guelph) |
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