Vol. 251, Issue 12, 1953December 01, 1953 EDT
Middle Ordovician Beds in the Saguenay Valley, Quebec
Middle Ordovician Beds in the Saguenay Valley, Quebec
George Winston Sinclair,
Sinclair, G. W. (1953). Middle Ordovician beds in the Saguenay Valley, Quebec. American Journal of Science, 251(12), 841–854. https://doi.org/10.2475/ajs.251.12.841