International Symposium "Computational Intelligence 89", Gardin, F., Mauri, G. C., & Filippini, M. (1990). Computational intelligence, II: Proceedings of the International Symposium "Computational Intelligence 89", Milan, Italy, 25-27 September 1989. North-Holland : Distributors for the U.S.A. and Canada, Elsevier Science Pub. Co..
Παραπομπή σε μορφή Chicago (17η εκδ.)International Symposium "Computational Intelligence 89", Francesco Gardin, Gian Carlo Mauri, και Mariagrazia Filippini. Computational Intelligence, II: Proceedings of the International Symposium "Computational Intelligence 89", Milan, Italy, 25-27 September 1989. Amsterdam ; New York, N.Y., U.S.A.: North-Holland : Distributors for the U.S.A. and Canada, Elsevier Science Pub. Co., 1990.
Παραπομπή σε μορφή MLA (9th εκδ.)International Symposium "Computational Intelligence 89", et al. Computational Intelligence, II: Proceedings of the International Symposium "Computational Intelligence 89", Milan, Italy, 25-27 September 1989. North-Holland : Distributors for the U.S.A. and Canada, Elsevier Science Pub. Co., 1990.