Gardner, H. (1982). Developmental psychology: An introduction (2nd ed.). Little, brown.
Chicago-čujuhus (17. p.)Gardner, Howard. Developmental Psychology: An Introduction. 2nd ed. Boston: Little, brown, 1982.
MLA-čujuhus (9. p.)Gardner, Howard. Developmental Psychology: An Introduction. 2nd ed. Little, brown, 1982.
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