Rare earth elements and yttrium.
Contributors: United States. Bureau of Mines.
Publisher: Bureau of Mines, U.S. Dept. of the Interior
Published: 1985
Place of publication: [Washingtion, D.C.?]
Language: eng
Number of pages: 18
Subjects: Earths, Rare -- United States.; Yttrium.
Notes: At head of title: Preprint from Bulletin 675.

"A chapter from Mineral facts and problems, 1985 edition.

Bibliography: p. 17-18.