Citazione APA

Hutchinson, J. (1973). Families of flowering plants (3rd.). Clarendon Press.

Stile di citazione Chicago

Hutchinson, J. Families of Flowering Plants. 3rd. Oxford: Clarendon Press, 1973.

Citazione MLA

Hutchinson, J. Families of Flowering Plants. 3rd. Clarendon Press, 1973.