APA (7e ed.) Bronvermelding

Whitehurst, G. J., & Zimmerman, B. J. (1979). The functions of language and cognition. Academic Press.

Chicago (17e ed.) Bronvermelding

Whitehurst, Grover J., en Barry J. Zimmerman. The Functions of Language and Cognition. Nueva York: Academic Press, 1979.

MLA (9e ed.) Bronvermelding

Whitehurst, Grover J., en Barry J. Zimmerman. The Functions of Language and Cognition. Academic Press, 1979.