Bettetini, G. - Garassini, S. - Gasparini, B. - Vittadini, N., I nuovi strumenti del comunicare. Milano : Bompiani, 2001 Ingwersen, P., Information and Information Science in Context. "Libri", 42 (1992), n. 2, p. 99-135 Ingwersen, P., Information and Information Science, in ELIS [Enciclopedia of Library and Information Science], v. 56, suppl.19, p. 137-174 Ingwersen, P., Conception of information science in Vakkari, P. Jacob, F., La logique du vivent. Paris : Gallimard, 1970 ("trad.it." La logica del vivente. Torino : Einaudi, 1971) Kaplan, A., The Age of Symbol: A Philosophy of Library Education. "The Library Quarterly", 34 (1964), p. 295-304 Machlup, F. - Mansfi eld, U. (eds), The Study of Information. Interdisciplinary Messages. New York; Chichester : John Wiley & Sons, 1983 Piaget, J., L'épistémologie des relations interdisciplinaires, in L'interdisciplinarité : problemes d'enseignement et de recherche dans les universités. Paris : OCDE, 1972 Vakkari, P. - Cronin B. (eds), Conceptions of Library and Information Science: Historical, empirical and theoretical perspectives. London : Taylor Graham, 1992