APA (7th ed.) Citation

Waddell, M., & Barton, J. (2005). It's quacking time (1st U.S. ed.). Candlewick Press.

Chicago Style (17th ed.) Citation

Waddell, Martin, and Jill Barton. It's Quacking Time. 1st U.S. ed. Cambridge, Mass.: Candlewick Press, 2005.

MLA (8th ed.) Citation

Waddell, Martin, and Jill Barton. It's Quacking Time. 1st U.S. ed. Candlewick Press, 2005.

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