APA (7th ed.) Citation

Garson, S., & Illustrated by Sarah Garson. One, two cockatoo! Andersen Press Books Published.

Chicago Style (17th ed.) Citation

Garson, Sarah, and Illustrated by Sarah Garson. One, Two Cockatoo! London: Andersen Press Books Published.

MLA (9th ed.) Citation

Garson, Sarah, and Illustrated by Sarah Garson. One, Two Cockatoo! Andersen Press Books Published.

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