TY  - BOOK
AU  - Ingard , Uno 
TI  - Noise reducation analysis
SN  - 9789380298436
U1  - 620.23 
PY  - 2010///
CY  - New Delhi
PB  - Physics Series , 
KW  -  Reducation analysis
N1  - Includes appendixes & index
ER  -