TY  - BOOK
AU  - Marx,Gary T.
TI  - Undercover: police surveillance in America 
SN  - 0520062868
U1  - 363.232  
PY  - 1988///
CY  - Berkeley
PB  - University of California Press
KW  - Undercover operations
KW  - United States
KW  - Criminal investigation
KW  - Police patrol
ER  -