APA (7th ed.) Citation

Mayer, M., Dyer, J., & Krauss, R. (2007). Little Critter: I Am Helping (1st board book ed.). HarperFestival.

Chicago Style (17th ed.) Citation

Mayer, Mercer, Jane Dyer, and Ruth Krauss. Little Critter: I Am Helping. 1st board book ed. New York: HarperFestival, 2007.

MLA (8th ed.) Citation

Mayer, Mercer, et al. Little Critter: I Am Helping. 1st board book ed. HarperFestival, 2007.