| 1 |
Child psychology in retrospect and prospect : in celebration of the 75th anniversary of the Institute of Child Development / edited by Willard W. Hartup, Richard A. Weinberg
Mahwah, N.J. : L. Erlbaum Associates , 2002
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| 2 |
Relationships as developmental contexts / edited by W. Andrew Collins, Brett Laursen
: hard. - Mahwah, N.J. : L. Erlbaum Associates , 1999
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| 3 |
Relationships and development / edited by Willard W. Hartup, Zick Rubin ; sponsored by the Social Science Research Council
Hillsdale, N.J. : L. Erlbaum Associates , 1986
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| 4 |
Social cognition and social development : a sociocultural perspective / edited by E. Tory Higgins, Diane N. Ruble, Willard W. Hartup
: pbk. - Cambridge [Cambridgeshire] : Cambridge University Press , 1985
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