http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Holyoakes Geschichte der Rochdaler Pioniere
The pioneer period - 1812 to 1844 : History of co-operation in England ; 1 <dt.>
deutsch in neuer Bearb. von Robert Schloesser