Iron ores
Publisher: U.S. Department of the Interior, Geological Survey
Published: 1938
Place of publication: Washington, D.C
Language: eng
Number of pages: 18
Subjects: Iron mines and mining
Notes: At head of title: United States. Department of the Interior. Geological Survey. Washington, 1938.

Various pagings.

Reproduced from type-written copy.

Microfilm. New York, N.Y. : Columbia University Libraries, 1994. 1 microfilm reel ; 35 mm.

Filmed; NEH Project (FMEST); 1994.