TY  - BOOK
AU  - Walker, Samuel
AU  - Kalz, Charles M.
TI  - The police in America: an introduction
U1  - 363.20973 
PY  - 2005///
CY  - New York
PB  - McGraw Hill 
KW  - Social Problems and Sciences
N1  - Include CD ROM ISBN 978-0-07-287325-2
ER  -