Information processing 68 : proceedings of IFIP Congress 1968, Edinburgh, 5-10 August 1968 / editor, A.J.H. Morrell. - Amsterdam : North-Holland Pub., 1969. - 2 v. (xi, 1650 p.) ; ISBN: 0720420326 Subjects--Topical Terms: Electronic data processing. Dewey Class. No.: 004 / In852