TY  - BOOK
AU  - Halpern,Alvin
AU  - Erlbach,Erich 
TI  - Beginning physics: Waves,Electromagnetism,Optics and modern physics
SN  - 9789389538793
U1  - 530.1 
PY  - 2020///
CY  - Newdelhi
PB  - Mcgrawhill
KW  - Wave motion
KW  - Sound
KW  - Simple electric circuits
ER  -