http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
τ.1. The eighteenth century. - xii, 578 σ. -- τ.2. The nineteenth century. - vii, 478 σ. -- τ.3. The twentieth century. - x, 658 σ.