Lesnov, Feliks Petrovich Rare earth elements in ultramafic and mafic rocks and their minerals : minor and accessory minerals - Boca Raton, Florida CRC Press 2012 - x, 314 p. ilus. ISBN: 978-1-138-07515-3 Subjects--Topical Terms: GEOQUÍMICAMETALES RAROSROCAS IGNEASROCAS MAFICASROCAS ULTRAMAFICASTIERRAS RARAS Universal Decimal Class. No.: 553.493:550.4/L51R