APA (7th ed.) Citation

(2009). Yucky worms (1. publ.). Walker.

Chicago Style (17th ed.) Citation

Yucky Worms. 1. publ. London: Walker, 2009.

MLA (9th ed.) Citation

Yucky Worms. 1. publ. Walker, 2009.

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