http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
possibilities for simplification : a report
Organisation for Economic Co-operation and Development
[Distributed by] OECD Publications Center
prepared by an OECD road research group.
Paris : Organisation for Economic Co-operation and Development ; Washington, D.C. : [distributed by] OECD Publications Center, 1974