Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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