Cita APA (7th ed.)

Sitomer, M., & Sitomer, H. (1974). Spirals. Thomas Y. Crowell.

Cita Chicago (17th ed.)

Sitomer, Mindel, i Harry Sitomer. Spirals. New York: Thomas Y. Crowell, 1974.

Cita MLA (9th ed.)

Sitomer, Mindel, i Harry Sitomer. Spirals. Thomas Y. Crowell, 1974.