Helal, A. H., & Weiss, J. W. (1995). Information Superhighway: The Role of Librarians, Information Scientists, and Intermediaries. Proceedings of the International Essen Symposium (17th, Essen, Germany, October 24-27, 1994).
Citazione stile Chigago Style (17a edizione)Helal, Ahmed H., e Joachim W. Weiss. Information Superhighway: The Role of Librarians, Information Scientists, and Intermediaries. Proceedings of the International Essen Symposium (17th, Essen, Germany, October 24-27, 1994). 1995.
Citatione MLA (9a ed.)Helal, Ahmed H., e Joachim W. Weiss. Information Superhighway: The Role of Librarians, Information Scientists, and Intermediaries. Proceedings of the International Essen Symposium (17th, Essen, Germany, October 24-27, 1994). 1995.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.