TY  - BOOK
AU  - Spedding,F.H.
AU  - Daane,A.H.
ED  - Symposium on the Rare Earths and Related Elements (1959  : Chicago, Illinois).
TI  - The rare earths
PY  - 1971///
CY  - Huntington, New York
PB  - Krieger
KW  - Rare earths
KW  - Congresses
KW  - Rare earth metals
N1  - Original edition, 1961. Reprint 1971
ER  -