Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

Fletcher, Paul, e Ciara O'Toole. Language Development and Language Impairment: A Problem-based Introduction. Chichester, West Sussex, [England]: John Wiley & Sons, Inc, 2016.

Citatione MLA (9a ed.)

Fletcher, Paul, e Ciara O'Toole. Language Development and Language Impairment: A Problem-based Introduction. John Wiley & Sons, Inc, 2016.