APA (7th ed.) Citation

Opie, I., & Opie, P. (1951). The Oxford dictionary of nursery rhymes. Clarendon Press.

Chicago Style (17th ed.) Citation

Opie, Iona, and Peter Opie. The Oxford Dictionary of Nursery Rhymes. Oxford: Clarendon Press, 1951.

MLA (9th ed.) Citation

Opie, Iona, and Peter Opie. The Oxford Dictionary of Nursery Rhymes. Clarendon Press, 1951.