TY  - GEN
AU  - Jayasinghe ,  E.M.
AU  - Jayarathne  , Osmund  
TI  - Physics waves and vibrations
U1  - 531.32 
PY  - 1984///
CY  - Nugegoda
PB  - Open University
KW  - VIBRATIONS
KW  - PHYSICS
KW  - WAVES
ER  -