Tohutoro APA (7th ed.)
Helms Donald B. (1976). Exploring child behavior (ed.).
Tohutoru Kātū Chicago (17th ed.)
Helms Donald B. Exploring Child Behavior. ed. Child psychology, 1976.
Tohutoro MLA (9th ed.)
Helms Donald B. Exploring Child Behavior. ed. 1976.
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