APA Citation

Opie, P., & Opie, I. (1963). The Puffin book of nursery rhymes. Baltimore: Penguin Books.

Chicago Style Citation

Opie, Peter,, and Iona Opie. The Puffin Book of Nursery Rhymes. Baltimore: Penguin Books, 1963.

MLA Citation

Opie, Peter,, and Iona Opie. The Puffin Book of Nursery Rhymes. Baltimore: Penguin Books, 1963.

Warning: These citations may not always be 100% accurate.