APA (7th ed.) Citation

Hughes, N. F. (1994). The enigma of angiosperm origins. Cambridge University Press.

Chicago Style (17th ed.) Citation

Hughes, Norman F. The Enigma of Angiosperm Origins. Cambridge [England] ; New York: Cambridge University Press, 1994.

MLA (9th ed.) Citation

Hughes, Norman F. The Enigma of Angiosperm Origins. Cambridge University Press, 1994.