Dyfyniad APA

Raven, P. H., Evert, R. F., & Eichhorn, S. E. (2005). Biology of plants (7th ed.). W.H. Freeman.

Dyfyniad Arddull Chicago

Raven, Peter H., Ray Franklin Evert, and Susan E. Eichhorn. Biology of Plants. 7th ed. New York: W.H. Freeman, 2005.

Dyfyniad MLA

Raven, Peter H., et al. Biology of Plants. 7th ed. W.H. Freeman, 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.