APA (7th ed.) Citation

Cullen, J., & Davis, P. H. (1997). The identification of flowering plant families (4th ed.). Cambridge University Press.

Chicago Style (17th ed.) Citation

Cullen, J., and P. H. Davis. The Identification of Flowering Plant Families. 4th ed. Cambridge: Cambridge University Press, 1997.

MLA (9th ed.) Citation

Cullen, J., and P. H. Davis. The Identification of Flowering Plant Families. 4th ed. Cambridge University Press, 1997.

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