TY  - BOOK
AU  - GUPTA , S.L .
AU  - KUMAR , V .
TI  - ELEMENTS OF SPECTROSCOPY (ATOMIC , MOLECULAR AND LASER PHYSICS )
U1  - 539.7 GUP 
PY  - 2006///
CY  - MERRUT
PB  - PRAGATI PRAKASHAN.
KW  - Atomic Physics
ER  -