Magnesium
By: [by] W. H. Umberger.
Contributors: Umberger, Walter H.
Published: 1946
Place of publication: [Washington
Language: eng
Number of pages: 88
Subjects: Magnesium.
Notes: Includes bibliographical references.
Title from label mounted on cover.
At head of title: Railroad committee for the study of transportation, Subcommittee on economic study, Association of American railroads.