Hutchinson, J. (1967). Key to the families of flowering plants of the world. Clarendon Press.
Citace podle Chicago (17th ed.)Hutchinson, J. Key to the Families of Flowering Plants of the World. London, United Kingdom: Clarendon Press, 1967.
Citace podle MLA (9th ed.)Hutchinson, J. Key to the Families of Flowering Plants of the World. Clarendon Press, 1967.
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