TY  - BOOK
AU  - Iqbal, M. A.
AU  - Thomas, R. J.
AU  - Willson, T. K.
TI  - The Control of Noise in Ventilation Systems a Designer's Guide 
SN  - 0470428120
U1  - 697.9202 
PY  - 1977///
CY  - London : 
PB  - E and FN Spon, 
KW  - Ventilation Noise Guidebook
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-470-42812-0.pdf
ER  -