APA (7th ed.) Citation

Willis, K. J., & McElwain, J. (2014). The evolution of plants (Second edition.). Oxford University Press.

Chicago Style (17th ed.) Citation

Willis, K. J., and J.C McElwain. The Evolution of Plants. Second edition. Oxford: Oxford University Press, 2014.

MLA (9th ed.) Citation

Willis, K. J., and J.C McElwain. The Evolution of Plants. Second edition. Oxford University Press, 2014.