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credit river valley

Credit River Valley report

By Philip Wyman Harrison

Redescription of type specimens of species of the bryozoan genera Atactoporella, Homotrypa, and Homotrypella, from the Upper Ordovician rocks of the Credit River Valley, Ontario, Canada

By Madeleine A. Fritz

Credit River Valley report

By Philip Wyman Harrison

The longitudinal profile of the Credit River

By Peter Battersby Duckworth

Credit River Valley

By Project Planning Associates (Toronto, Ont.)

Credit Valley conservation report 1956

By Ontario. Conservation Branch.

Credit Valley conservation report, 1957

By Ontario. Dept. of Planning and Development.