Seward, A. C. (1966). Plant life through the ages: Geological and botanical retrospect. Hafner Pub. Co..
Chicago Edition CitationSeward, A. C. Plant Life Through the Ages: Geological and Botanical Retrospect. Hafner Pub. Co., 1966.
Deismireacht MLASeward, A. C. Plant Life Through the Ages: Geological and Botanical Retrospect. Hafner Pub. Co., 1966.
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