APA (7th ed.) Citation

Smiley, J., & Castillo, L. (2016). Twenty yawns (First edition.). Two Lions.

Chicago Style (17th ed.) Citation

Smiley, Jane, and Lauren Castillo. Twenty Yawns. First edition. New York: Two Lions, 2016.

MLA (8th ed.) Citation

Smiley, Jane, and Lauren Castillo. Twenty Yawns. First edition. Two Lions, 2016.

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