HURLOCK, E. B. (1972). Child development.-- Ed.5. McGraw-Hill.
Chicago-čujuhus (17. p.)HURLOCK, Elzabeth B. Child Development.-- Ed.5. New York: McGraw-Hill, 1972.
MLA-čujuhus (9. p.)HURLOCK, Elzabeth B. Child Development.-- Ed.5. McGraw-Hill, 1972.
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