TY  - BOOK
AU  - Spergel, Irving
AU  - Spergel, Irving
TI  - Street gang work : theory  and practice
U1  - Y111:42:12:73 
PY  - 1966///
CY  - London
PB  - Addison- Welsely Pub. Co.
KW  - Y111:42:12:73
ER  -