TY  - BOOK
ED  - Standards Australia
TI  - ISO 389-7. Acoustics - Reference zero for the calibration of audometric equipment. Part 7: Reference threshold of hearing under free-field and diffuse-field listeneing considitons: Amendment 1: Reference thereshold of hearing at 20 Hz and 18 000 Hz under free-field listeneing conditions and at 20 Hz under diffuse-field listening conditions
PY  - 2016///
CY  - Geneva
PB  - International Standards Association
ER  -