TY  - RPRT
TI  - Standards for the physical protection of National resources and facilities 
AU  - Dikkers, Robert D
PY  - 1991
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 4618
DO  - 10.6028/NIST.IR.4618
ER  -