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APA Citation
Poli︠a︡kov, G. V. (. V., & Anoshin, G. N. (Eds.) (2010). Rare earth elements in ultramafic and mafic rocks and their minerals : main types of rocks : rock-forming minerals. London New York : CRC Press/Balkema. http://access.bl.uk/ark:/81055/vdc_100045379405.0x000001