APA (7th ed.) Citation

Willis, J. C., & Shaw, H. K. A. (1966). A dictionary of the flowering plants and ferns (Seventh edition.). Cambridge U.P..

Chicago Style (17th ed.) Citation

Willis, J. C., and Herbert Kenneth Airy Shaw. A Dictionary of the Flowering Plants and Ferns. Seventh edition. Cambridge: Cambridge U.P., 1966.

MLA (9th ed.) Citation

Willis, J. C., and Herbert Kenneth Airy Shaw. A Dictionary of the Flowering Plants and Ferns. Seventh edition. Cambridge U.P., 1966.