APA (7th ed.) Citation

Rendle, A. B. (1971). The classification of flowering plants (2nd ed.). University Press.

Chicago Style (17th ed.) Citation

Rendle, Alfred Barton. The Classification of Flowering Plants. 2nd ed. Cambridge: University Press, 1971.

MLA (9th ed.) Citation

Rendle, Alfred Barton. The Classification of Flowering Plants. 2nd ed. University Press, 1971.