Key to the Quaternary pollen and spores of the Great Lakes region /

Key to the Quaternary pollen and spores of the Great Lakes region / Berti, Albert A. McAndrews, John H. (John Henry), 1933- Norris, Geoffrey. Royal Ontario Museum. text book Toronto : Royal Ontario Museum, 1973. 1973 English Great Lakes Region Paleobotany Plant spores, Fossil Pollen, Fossil Quaternary QE993.2 M3 Life sciences miscellaneous publications http://www.biodiversitylibrary.org/bibliography/60762 088854149X 916008 OTU