TY  - BOOK
AU  - Gupta,Y.D.
AU  - Trivedi,K.S.
TI  - Text-book of sound: for B.Sc. students of Indian universities 
U1  - 534 
PY  - 1968///
CY  - Agra
PB  - The book store educational publishers
KW  - Sound
N1  - Includes index
ER  -