Kelimpahan unsur dalam kerak Bumi: Perbedaan antara revisi

|[[lutesium]]<ref name="Emsley240">{{cite book|pages=240–242|url =http://books.google.com/?id=Yhi5X7OwuGkC&pg=PA241|title =Nature's building blocks: an A-Z guide to the elements|first =John |last=Emsley|publisher=Oxford University Press|isbn = 0-19-850341-5|year=2001}}</ref>