TY  - BOOK
AU  - Dieke, Gerhard Heinrich
AU  - Crosswhite, Hannah
TI  - SPECTRA AND ENERGY LEVELS OF RARE EARTH IONS IN CRYSTALS
U1  - 548.8 
PY  - 1968///
CY  - New York
PB  - Interscience Pub.
KW  - Rare Earth Ions -- Spectra
KW  - Ionic Crystals -- Spectra
N1  - Includes Bibliography
ER  -