TY  - GEN
TI  - Chapter wise & explanatory UPSC Civil Services (Pre) Physics                             
SN  - 8183482066 
U1  - 530 AIR 
PY  - 0000///
CY  - New Delhi : 
PB  - Arihant Publications (India) Limited 
KW  - Waves - sound
KW  - Machanics
KW  - Electronics
ER  -