Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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