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Illustrated Key to Genera of Lower Cretaceous Terrestrial Palynomorphs (excluding Megaspores) of Western Canada

Elliott T. BurdenL. V. Hills

出版	American Association of Stratigraphic Palynologists Foundation, 1989
URL	http://books.google.com.hk/books?id=e3hOAQAAIAAJ&hl=&source=gbs_api