Cita APA

Hutchinson, J. 1. (1967). Key to the families of flowering plants of the world. Oxford: Clarendon Press.

Citación estilo Chicago

Hutchinson, John 1884-1972. Key to the Families of Flowering Plants of the World. Oxford: Clarendon Press, 1967.

Cita MLA

Hutchinson, John 1884-1972. Key to the Families of Flowering Plants of the World. Oxford: Clarendon Press, 1967.