Cita APA (7a ed.)

Foeste, A., & Curtis, B. (1998). Ice skating basics. Sterling Pub. Co.

Cita Chicago Style (17a ed.)

Foeste, Aaron, y Bruce Curtis. Ice Skating Basics. New York: Sterling Pub. Co, 1998.

Cita MLA (9a ed.)

Foeste, Aaron, y Bruce Curtis. Ice Skating Basics. Sterling Pub. Co, 1998.