2 treff

Palynological zonation and correlation of sixty-seven wells, Eastern Canada
by M.S. Barss, J.P. Bujak, G.L. Williams
Bok Språk ikke angitt 1979
A carboniferous spore assemblage, in coal from the South Nahanni River area, northwest territories
Hacquebard, Peter A.
Bok Engelsk 1957