TY  - BOOK
AU  - Subrahmanyam,N
AU  - Brij Lal
TI  - A Textbook Of Sound / 
SN  - 0706998170
U1  - 534 
PY  - 1998///, 1999 & 2014
CY  - New Delhi.
PB  - Vikas Publishing House Pvt Ltd
KW  - Physics
N1  - Includes Index
ER  -