APA (7th ed.) Citation

Ingram, D. (1989). First language acqusition: Method, description, and explanation. Cambridge University Press.

Chicago Style (17th ed.) Citation

Ingram, David. First Language Acqusition: Method, Description, and Explanation. Cambridge: Cambridge University Press, 1989.

MLA (8th ed.) Citation

Ingram, David. First Language Acqusition: Method, Description, and Explanation. Cambridge University Press, 1989.