APA (7th ed.) Citation

Chast, R. (2010). Too busy Marco. Atheneum Books for Young Readers.

Chicago Style (17th ed.) Citation

Chast, Roz. Too Busy Marco. New York [u.a.]: Atheneum Books for Young Readers, 2010.

MLA (9th ed.) Citation

Chast, Roz. Too Busy Marco. Atheneum Books for Young Readers, 2010.

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