TY  - RPRT
TI  - Acoustical performance of fiscal 1975 hearing aids 
AU  - Burnett, E D
AU  - Bassin, M A
PY  - 1974
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 74-558
DO  - 10.6028/NBS.IR.74-558
ER  -