APA (7th ed.) Citation

Greene, C. C., & McCully, E. A. (1978). I and Sproggy. Viking Press.

Chicago Style (17th ed.) Citation

Greene, Constance C., and Emily Arnold McCully. I and Sproggy. New York: Viking Press, 1978.

MLA (9th ed.) Citation

Greene, Constance C., and Emily Arnold McCully. I and Sproggy. Viking Press, 1978.