Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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