APA (7th ed.) Citation

Clapham, A. R., Tutin, T. G., & Warburg, E. F. (1952). Flora of the British Isles. Cambridge University Press.

Chicago Style (17th ed.) Citation

Clapham, A. R., Thomas Gaskell Tutin, and E. F. Warburg. Flora of the British Isles. Cambridge: Cambridge University Press, 1952.

MLA (9th ed.) Citation

Clapham, A. R., et al. Flora of the British Isles. Cambridge University Press, 1952.