http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
International Congress of Psychology 1980 ; Lipsk).
ed. by Hans Hiebsch ; co-editors: Herman Brandstätter and Harold H. Kelly.
XXIInd International Congress of Psychology. Leipzig GDR, July 6-12, 1980 : selected revised papers.