TY  - RPRT
TI  - The ABC's of certification activities in the United States 
AU  - Breitenberg, Maureen A
PY  - 1988
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 87-3821
DO  - 10.6028/NBS.IR.87-3821
ER  -