http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
the emergence of the ethno-religious factor in the politics of the lower anthracite region, 1844-1872
William A.Gudelunas, Jr. and William G. Shade.
Based on W. A. Gudelunas' thesis, Lehigh University, 1973.