Johnson, W. (1955). Stuttering in children and adults: Thirty years of research at the University of Iowa. Univ. of Minnesota Press.
Cita Chicago Style (17a ed.)Johnson, Wendell. Stuttering in Children and Adults: Thirty Years of Research at the University of Iowa. Minneapolis: Univ. of Minnesota Press, 1955.
Cita MLA (8a ed.)Johnson, Wendell. Stuttering in Children and Adults: Thirty Years of Research at the University of Iowa. Univ. of Minnesota Press, 1955.
Precaución: Estas citas no son 100% exactas.