APA (7th ed.) Citation

Birney, B. G., & Burris, P. (2016). Humphrey's mixed-up magic trick. G. P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Birney, Betty G., and Priscilla Burris. Humphrey's Mixed-up Magic Trick. New York, NY: G. P. Putnam's Sons, 2016.

MLA (8th ed.) Citation

Birney, Betty G., and Priscilla Burris. Humphrey's Mixed-up Magic Trick. G. P. Putnam's Sons, 2016.

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