Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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