TY  - RPRT
TI  - The National Measurement System for acoustics 
AU  - Pallett, David S
AU  - Cadoff, Marilyn A
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 75-938
DO  - 10.6028/NBS.IR.75-938
ER  -