Cita APA (7th ed.)

Spriestersbach, D. C., Sherman, D. H., & Curtis, J. F. (1968). Cleft palate and communication. Academic Press.

Cita Chicago (17th ed.)

Spriestersbach, D. C., Dorothy Helen Sherman, i James F. Curtis. Cleft Palate and Communication. New York: Academic Press, 1968.

Cita MLA (9th ed.)

Spriestersbach, D. C., et al. Cleft Palate and Communication. Academic Press, 1968.