APA (7th ed.) Citation

Birney, B. G., & Burris, P. (2014). Humphrey's really wheely racing day. G.P. Putnam's Sons, an imprint of Penguin Group (USA).

Chicago Style (17th ed.) Citation

Birney, Betty G., and Priscilla Burris. Humphrey's Really Wheely Racing Day. New York: G.P. Putnam's Sons, an imprint of Penguin Group (USA), 2014.

MLA (8th ed.) Citation

Birney, Betty G., and Priscilla Burris. Humphrey's Really Wheely Racing Day. G.P. Putnam's Sons, an imprint of Penguin Group (USA), 2014.

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