IFIP TC 8/WG 8.1 Working Conference on Information System Concepts Namur, Belgium, International Federation for Information Processing. Technical Committee for Information Systems, IFIP WG 8.1, Falkenberg, E. D., & Lindgreen, P. (1989). Information system concepts: An in-depth analysis : proceedings of the IFIP TC 8/WG 8.1 Working Conference on Information System Concepts: an in-depth analysis Namur, Belgium, 18-20 October, 1989. North-Holland ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co.
Παραπομπή σε μορφή Chicago (17η εκδ.)IFIP TC 8/WG 8.1 Working Conference on Information System Concepts Namur, Belgium, International Federation for Information Processing. Technical Committee for Information Systems, IFIP WG 8.1, Eckhard D. Falkenberg, και Paul Lindgreen. Information System Concepts: An In-depth Analysis : Proceedings of the IFIP TC 8/WG 8.1 Working Conference on Information System Concepts: An In-depth Analysis Namur, Belgium, 18-20 October, 1989. Amsterdam ; New York : New York, N.Y., U.S.A.: North-Holland ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co, 1989.
Παραπομπή σε μορφή MLA (9th εκδ.)IFIP TC 8/WG 8.1 Working Conference on Information System Concepts Namur, Belgium, et al. Information System Concepts: An In-depth Analysis : Proceedings of the IFIP TC 8/WG 8.1 Working Conference on Information System Concepts: An In-depth Analysis Namur, Belgium, 18-20 October, 1989. North-Holland ; Distributors for the U.S. and Canada, Elsevier Science Pub. Co, 1989.