APA (7th ed.) Zitazioa

Hutchinson, J. (1967). Key to the families of flowering plants of the world. Clarendon Press.

Chicago Style (17th ed.) Zitazioa

Hutchinson, J. Key to the Families of Flowering Plants of the World. Oxford: Clarendon Press, 1967.

MLA (9th ed.) Zitazioa

Hutchinson, J. Key to the Families of Flowering Plants of the World. Clarendon Press, 1967.