http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
industrial situation and the question of wages
1 online resource (ix, 157 pages, 4 unnumbered pages) : illustrations.
Reproduction from the Rare Book and Manuscript Library of Columbia University.
Making of the modern world. Part 2 (1851-1914)