TY  - BOOK
AU  - Subramanian, C. V., 
TI  - Practical Ultrasonics 
SN  - 9788173196461
U1  - 620.11274 
PY  - 2006///.
CY  - New Delhi
PB  - Narosa Publishing House, 
N1  - This book is having Appendix on page no 142.
ER  -