Advance formation: stratigraphy and biostratigraphy of a new Ordovician formation from the Rocky Mountains, Northeastern British Columbia /

Autor Norford, B. S., 1932-, Jin, J., Elias, R. J., Bolton, Thomas Elwood, 1924-1997, Rohr, David Malcolm, 1947-, Johnston, P. A.
Vydáno 1996

The Guadalupian symposium /

Vydáno 2000