TY  - RPRT
TI  - Procurement of evaluation systems : a case study of the parametric factor evaluation approach to source selection
AU  - Libman, Ardwin S
PY  - 1980
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 80-2092
DO  - 10.6028/NBS.IR.80-2092
ER  -