TY  - RPRT
TI  - Productivity measurement in r&d : productivity measurement experiment (PROMEX) in selected research and development programs at the National Bureau of Standards
AU  - Hall, John T
PY  - 1975
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 890
DO  - 10.6028/NBS.TN.890
ER  -