Hutchinson, J. (1967). Key to the families of flowering plants of the world. Clarendon Press.
Chicago Style (17. basım) AtıfHutchinson, J. Key to the Families of Flowering Plants of the World. Oxford: Clarendon Press, 1967.
MLA (9th ed.) AtıfHutchinson, J. Key to the Families of Flowering Plants of the World. Clarendon Press, 1967.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..