APA (7th ed.) Citation

Hardy, M. E. (1920). The geography of plants. Clarendon Press.

Chicago Style (17th ed.) Citation

Hardy, Marcel E. The Geography of Plants. Oxford: Clarendon Press, 1920.

MLA (9th ed.) Citation

Hardy, Marcel E. The Geography of Plants. Clarendon Press, 1920.

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