TY  - BOOK
AU  - Helen, V. S. 
AU  - 
TI  - Atomic and molecular physic
SN  - 9788190798167
U1  - 539.7 
PY  - 2009///
CY  - Chennai
PB  - Neithal Pathipagam
KW  - Atoms
KW  - Malecules
KW  - Nuclear physics
ER  -