TY  - GEN
AU  - Khanna, D. R.
TI  - A textbook of sound
U1  - 534 
PY  - 1972///
CY  - New- Delhi
PB  - Atma Ram & Sons
KW  -   Physics
KW  -   Sound
KW  -   Motion
N1  -   Includes diagram
ER  -