APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.