APA (7th ed.) Citation

Polunin, O., & Everard, B. (1976). Trees and bushes of Europe. Oxford University Press.

Chicago Style (17th ed.) Citation

Polunin, Oleg, and Barbara Everard. Trees and Bushes of Europe. London ; New York: Oxford University Press, 1976.

MLA (8th ed.) Citation

Polunin, Oleg, and Barbara Everard. Trees and Bushes of Europe. Oxford University Press, 1976.