APA (7th ed.) Citation

Waddell, M., & Barbara Firth. (1991). Can't you Sleep, Little Bear? Walker Books.

Chicago Style (17th ed.) Citation

Waddell, Martin, and Barbara Firth. Can't You Sleep, Little Bear? London: Walker Books, 1991.

MLA (9th ed.) Citation

Waddell, Martin, and Barbara Firth. Can't You Sleep, Little Bear? Walker Books, 1991.

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