TY  - BOOK
AU  - Verma, H. C.
TI  - Concepts of physics
SN  - 9788177091878
AV  - 23698-23747 
U1  - 530 22
PY  - 0000///22020///
CY  - New Delhi
PB  - Bharati Bhawan
N1  - Includes index
ER  -