Raven, P. H., Evert, R. F., & Eichhorn, S. E. (1999). Biology of plants (6th ed.). W.H. Freeman and Co.
Chicago Style (17th ed.) CitationRaven, Peter H., Ray F. Evert, and Susan E. Eichhorn. Biology of Plants. 6th ed. Madison Avenue, New York: W.H. Freeman and Co, 1999.
MLA (9th ed.) CitationRaven, Peter H., et al. Biology of Plants. 6th ed. W.H. Freeman and Co, 1999.
Warning: These citations may not always be 100% accurate.