TY  - RPRT
TI  - Acoustical performance of a group of hearing aids 
AU  - Burnett, E D
AU  - Bassin, M A
PY  - 1974
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 73-410
DO  - 10.6028/NBS.IR.73-410
ER  -