Whitehurst, G. J., & Zimmerman, B. J. (1979). The Functions of language and cognition. Academic Press.
Cita Chicago Style (17a ed.)Whitehurst, Grover J., y Barry J. Zimmerman. The Functions of Language and Cognition. New York: Academic Press, 1979.
Cita MLA (8a ed.)Whitehurst, Grover J., y Barry J. Zimmerman. The Functions of Language and Cognition. Academic Press, 1979.
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