APA (7th ed.) Citation

Raven, P. H., Evert, R. F., & Eichhorn, S. E. (1999). Biology of plants (6th edition.). W.H. Freeman Worth Publishers.

Chicago Style (17th ed.) Citation

Raven, Peter H., Ray Franklin Evert, and Susan E. Eichhorn. Biology of Plants. 6th edition. New York: W.H. Freeman Worth Publishers, 1999.

MLA (8th ed.) Citation

Raven, Peter H., et al. Biology of Plants. 6th edition. W.H. Freeman Worth Publishers, 1999.