APA (7th ed.) Citation

Birney, B. G., & Burris, P. (2014). Humphrey's playful puppy problem. G.P. Putnam's Sons, an imprint of Penguin Group (USA).

Chicago Style (17th ed.) Citation

Birney, Betty G., and Priscilla Burris. Humphrey's Playful Puppy Problem. New York, NY: G.P. Putnam's Sons, an imprint of Penguin Group (USA), 2014.

MLA (8th ed.) Citation

Birney, Betty G., and Priscilla Burris. Humphrey's Playful Puppy Problem. G.P. Putnam's Sons, an imprint of Penguin Group (USA), 2014.

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