Computer-aided estimates of concentrating- grade iron resources in the Negaunee iron- formation, Marquette district, Michigan.  by William F. Cannon, S.L. Powers and N.A. Wright
Contributors: Powers, S.L.; Wright, N.A.
Publisher: U.S. Dept. of the Interior
Place of publication: Washington
Language: eng
Number of pages: 21
Subjects: Iron ores - Michigan
Notes: 11