Information Systems, their interconnection and compatibility : proceedings of a Symposium on Information Systems: Connection and Compatibility / organized by the International Atomic Energy Agency and co-sponsored by the Food and Agriculture Organization of the United Nations and the United Nations Educational, Scientific and Cultural Organization, held in Varna, Bulgaria, 30 September-3 October 1974.
Publicacion
Vienna : IAEA ; New York : sold by UNIPUB, Inc, 1975.
