APA (7th ed.) Citation

Travers, P. L., Dillon, L., & Dillon, D. (1980). Two pairs of shoes. Viking Press.

Chicago Style (17th ed.) Citation

Travers, P. L., Leo Dillon, and Diane Dillon. Two Pairs of Shoes. New York: Viking Press, 1980.

MLA (9th ed.) Citation

Travers, P. L., et al. Two Pairs of Shoes. Viking Press, 1980.