Approaches to Positive Youth Development
by Rainer K. Silbereisen,Richard M. Lerner
ISBN 13: 9781412922883
Format: Illustrated (368 pages) Publisher: SAGE Publications Ltd Published: 21 Aug 2007
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Growing Points in Developmental Science: An Introduction
by Willard W. Hartup, Rainer K. Silbereisen
ISBN 13: 9781841693118
Format: Hardcover (384 pages) Publisher: Psychology Press Published: 25 Jul 2002