Dyfyniad APA

Seward, A. C. (1966). Plant life through the ages: Geological and botanical retrospect. Hafner Pub. Co..

Dyfyniad Arddull Chicago

Seward, A. C. Plant Life Through the Ages: Geological and Botanical Retrospect. Hafner Pub. Co., 1966.

Dyfyniad MLA

Seward, A. C. Plant Life Through the Ages: Geological and Botanical Retrospect. Hafner Pub. Co., 1966.

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