Andrews, G., & Harris, M. (1964). The syndrome of stuttering. Spastics Society Medical Education with W. Heinemann Medical Books.
Dyfyniad Arddull ChicagoAndrews, Gavin, and Mary Harris. The Syndrome of Stuttering. London: Spastics Society Medical Education with W. Heinemann Medical Books, 1964.
Dyfyniad MLAAndrews, Gavin, and Mary Harris. The Syndrome of Stuttering. Spastics Society Medical Education with W. Heinemann Medical Books, 1964.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.