TY  - BOOK
AU  - Silbereisen Rainer K. Ed.
AU  -  Lerner Richard M. Ed.
TI  - Approaches to positive youth development
SN  - 9781412922883 (hbk)
U1  - Y12:7:7, P7 
PY  - 2007///
CY  - Los Angeles
PB  -  Sage Publications USA    
KW  - SOCIOLOGY
ER  -