TY  - BOOK
AU  - Fraga S
AU  -  Saxena K M S
TI  - Atomic energy levels: data for parametric calculations
T2  - Physical science data; 4
U1  - C5:34, L9 
PY  - 1979///
CY  - Amsterdam
PB  - Elsevier Scientific        
KW  -  Atomic spectra
KW  - Physics
ER  -