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Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1908)

Neues Jahrbuch für Mineralogie, Geognosie, Geologie und Petrefaktenkunde - Bronn, H. G. (Heinrich Georg), 1800 -1862 (E. Schweizerbart's Verlagshandlung, 1908)

Upper Mississippian and Pennsylvanian megaspores and other plant microfossils from Illinois - Illinois State Geological Survey. (Illinois State Geological Survey, 1959)

The Whole fungus : the sexual-asexual synthesis - Kendrick, Bryce. (Published by National Museum of Natural Sciences and National Museums of Canada, 1979)

The Whole fungus : the sexual-asexual synthesis - Kendrick, Bryce. (Published by National Museum of Natural Sciences and National Museums of Canada, 1979)

The Whole fungus : the sexual-asexual synthesis - Kendrick, Bryce. (Published by National Museum of Natural Sciences and National Museums of Canada, 1979)