TY  - RPRT
TI  - Catalog of security equipment 
AU  - Fechter, John V
AU  - Robertson, Elizabeth M
PY  - 1978
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 480-35
DO  - 10.6028/NBS.SP.480-35
ER  -