Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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