Flavell, J. H. (1985). Cognitive development (2nd ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Flavell, John H. Cognitive Development. 2nd ed. Englewood Cliffs, New Jersey: Prentice-Hall, 1985.
Cita MLA (9a ed.)Flavell, John H. Cognitive Development. 2nd ed. Prentice-Hall, 1985.
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