Cita APA (7a ed.)

Paul, R., & Norbury, C. (2012). Language disorders from infancy through adolescence: Listening, speaking, reading, writing, and communicating (4th ed.). Elsevier.

Cita Chicago Style (17a ed.)

Paul, Rhea, y Courtenay Norbury. Language Disorders from Infancy Through Adolescence: Listening, Speaking, Reading, Writing, and Communicating. 4th ed. St. Louis, Mo: Elsevier, 2012.

Cita MLA (9a ed.)

Paul, Rhea, y Courtenay Norbury. Language Disorders from Infancy Through Adolescence: Listening, Speaking, Reading, Writing, and Communicating. 4th ed. Elsevier, 2012.