TY  - BOOK
AU  - Topp, N E,
TI  - The chemistry of the rare-earth elements
T2  - Topics in inorganic and general chemistry, monographs
AV  - QD172.R2 T6
PY  - 1965///
CY  - Amsterdam
PB  - New York esevier pub.
KW  - Tierras raras
ER  -