Cita APA (7th ed.)

Fletcher, P., & O'Toole, C. (2016). Language development and language impairment: A problem-based introduction. Wiley-Blackwell.

Cita Chicago (17th ed.)

Fletcher, Paul, i Ciara O'Toole. Language Development and Language Impairment: A Problem-based Introduction. Chichester, West Sussex, UK: Wiley-Blackwell, 2016.

Cita MLA (9th ed.)

Fletcher, Paul, i Ciara O'Toole. Language Development and Language Impairment: A Problem-based Introduction. Wiley-Blackwell, 2016.