TY  - BOOK
AU  - Schoeller,Walter Raymond
AU  - Powell,Alfred Richard
TI  - The analysis of minerals and ores of the rarer elements: a manual for analytical chemists, metallurgists, and advanced students,
PY  - 1955///
CY  - New york : 
PB  - Hafner Publishing Company
KW  - RARE EARTHS
KW  - inist
KW  - TIERRAS RARAS
ER  -