TY  - BOOK
AU  - Lesnov,F.P.
TI  - Rare earth elements in ultramafic and mafic rocks and their minerals: main types of rocks : rock-forming minerals 
SN  - 9780415578905
PY  - 2010///
CY  - Leiden, The Netherlands
PB  - CRC Press
KW  - Ultrabasic rocks
KW  - Rare earth metals
N1  - Includes bibliographical references and indexes
ER  -