TY  - BOOK
AU  - BERANEK, LEO L
TI  - NOISE REDUCTION
PY  - 1960///
CY  - NEWYORK
PB  - MC GRAW-HILL
UR  - http://krc.immt.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=558
ER  -