Cita APA (7a ed.)

White, E. B., & Frascino, E. (1996). The trumpet of the swan. HarperCollins.

Cita Chicago Style (17a ed.)

White, Elwyn Brooks, y Edward Frascino. The Trumpet of the Swan. New York: HarperCollins, 1996.

Cita MLA (9a ed.)

White, Elwyn Brooks, y Edward Frascino. The Trumpet of the Swan. HarperCollins, 1996.