Classification Group of SIS. Meeting, Vichi, M., & Opitz, O. (1999). Classification and data analysis: Theory and application : proceedings of the biannual meeting of the Classification Group of Societa Italiana di Statistica (SIS) Pescara, July 3-4, 1997. Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)Classification Group of SIS. Meeting, Maurizio Vichi, και Otto Opitz. Classification and Data Analysis: Theory and Application : Proceedings of the Biannual Meeting of the Classification Group of Societa Italiana Di Statistica (SIS) Pescara, July 3-4, 1997. Berlin: Springer, 1999.
Παραπομπή σε μορφή MLA (9th εκδ.)Classification Group of SIS. Meeting, et al. Classification and Data Analysis: Theory and Application : Proceedings of the Biannual Meeting of the Classification Group of Societa Italiana Di Statistica (SIS) Pescara, July 3-4, 1997. Springer, 1999.