APA (7e ed.) Bronvermelding

Willems, M., & Muth, J. J. (2010). City Dog, Country Frog. Hyperion Books for Children.

Chicago (17e ed.) Bronvermelding

Willems, Mo, en Jon J. Muth. City Dog, Country Frog. New York: Hyperion Books for Children, 2010.

MLA (8e ed.) Bronvermelding

Willems, Mo, en Jon J. Muth. City Dog, Country Frog. Hyperion Books for Children, 2010.