TY  - BOOK
AU  - Subrahmanyam, N.
AU  - Lal, Brij
TI  - A Textbook of Sound 
SN  - 0706998170
U1  - 534 
PY  - 1995///
CY  - New Delhi : 
PB  - Vikas Publishing House, 
KW  - Sound
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-7069-9817-0.pdf
ER  -