APA (7th ed.) Citation

Hewett, J., & Hewett, R. (2004). A koala joey grows up. Carolrhoda Books.

Chicago Style (17th ed.) Citation

Hewett, Joan, and Richard Hewett. A Koala Joey Grows Up. Minneapolis: Carolrhoda Books, 2004.

MLA (9th ed.) Citation

Hewett, Joan, and Richard Hewett. A Koala Joey Grows Up. Carolrhoda Books, 2004.