TY  - BOOK
AU  - Walker,Samuel
TI  - The police in america:  : an introduction
SN  - 0-07-067869-3
AV  - HV8138.W3418 
PY  - 1992///
CY  - New York
PB  -  : Co MacGraw-Hill
KW  - Police,
KW  - Canada,
KW  - Police administration
N1  - Includes bibliographical references
ER  -