TY  - BOOK
AU  - Silbereisen Rainer K. Ed.
AU  -  Lerner Richard M. Ed.
TI  - Approaches to positive youth development
SN  - 978141922883 (hbk)
U1  - S2:7:7, P7 
PY  - 2007///
CY  - Los
PB  - Angeles Sage USA      
KW  - PSYCHOLOGY
ER  -