TY  - BOOK
AU  - Gupta, S L; Gupta, S
TI  - Concepts of modern physics
SN  - 9781555281564
U1  - 539 GUP-C2 22
PY  - 1986///
CY  - 
PB  - Dhanpat Rai & Sons, New Delhi
KW  - Modern physics
ER  -