APA (7th ed.) Citation

Shannon, G., & Crews, D. (1995). Tomorrow's alphabet. Greenwillow Books.

Chicago Style (17th ed.) Citation

Shannon, George, and Donald Crews. Tomorrow's Alphabet. New York: Greenwillow Books, 1995.

MLA (8th ed.) Citation

Shannon, George, and Donald Crews. Tomorrow's Alphabet. Greenwillow Books, 1995.