APA (7th ed.) Citation

Gwen. (1997). Flowerless plants. Oxford University Press.

Chicago Style (17th ed.) Citation

Gwen. Flowerless Plants. New York: Oxford University Press, 1997.

MLA (9th ed.) Citation

Gwen. Flowerless Plants. Oxford University Press, 1997.

Warning: These citations may not always be 100% accurate.