Cita APA (7th ed.)

Flack, M., & Wiese, K. (1993). La historia de Ping. Scholastic Inc.

Cita Chicago (17th ed.)

Flack, Marjorie, i Kurt Wiese. La Historia De Ping. New York: Scholastic Inc, 1993.

Cita MLA (9th ed.)

Flack, Marjorie, i Kurt Wiese. La Historia De Ping. Scholastic Inc, 1993.