TY  - BOOK
AU  - Lerner Richard M
AU  - Silbereisen Rainer K
TI  - Approaches to positive youth development
SN  - 978-1-4129-2288-3
U1  - 305.2355 
PY  - 2007///
CY  - Los Angeles
PB  - Sage
KW  - Youth development
ER  -