UIA Publication Nr: 252Year: 1983ISBN/ISSN: 3-598-00675-6 (Vol 1); 3-598-00676-4 (Vol 2); 3-598-00677-2 (Vol 3); 3-598-00678-0 (Vol 4)Editor/Author: Union of International Associations (Ed)Publisher: KG Saur Verlag23rd edition, 4 volumes