TY  - RPRT
TI  - Executive guide to the protection of information resources 
AU  - Helsing, Cheryl
AU  - Swanson, Marianne
AU  - Todd, Mary Anne
PY  - 1989
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST SP 500-169
DO  - 10.6028/NIST.SP.500-169
ER  -