TY  - BOOK
AU  - R S Gambhir 
AU  - Gambhir, R S 
TI  - Introductory Physics (vol.2 Waves Optics & heat) 
U1  - 530 GAM B  
PY  - 1980///
CY  - New Delhi
PB  - Tata Mcgraw Hill
KW  -  
KW  - Physics 
ER  -