TY  - BOOK
AU  - Norman, Thomas L.
TI  - Electronic access control 
SN  - 978 0 12 382028 0
U1  - 621 38928 NOR 
PY  - 0000/// Butterworth-Heinemann
CY  - Waltham
PB  -  MA 
KW  - ELECTRONIC SECURITY SYSTEMS
ER  -