http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the IFIP TC-3 : 3rd World Conference on Computers in Education, Lausanne, Switzerland, July 27-31, 1981
3rd World Conference on Computers in Education
World Conference on Computers in Education, 3
World Conference on Computers in Education 1981 ; Lozanna).