Three theories of child development / 6
6
Henry W. Maier.
- 3d ed.
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- xi, 292 p. : ports. 25 cm.
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- Harper series in social work .
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Includes bibliographies and index.
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60441763
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77011085
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Erikson, Erik H.;Piaget, Jean,;Sears, Robert R. 2 1902-;1896- --0------