Belkin, N. J., Ingwersen, P., & Pejtersen, A. (1992). Research and development in information retrieval (1992): Proceedings of the 15th Annual International ACM/SIGIR Copenhagen, Denmark, June 21-24, 1992. Association for Computing Machinery.
Παραπομπή σε μορφή Chicago (17η εκδ.)Belkin, Nicholas J., Peter Ingwersen, και Annelise Pejtersen. Research and Development in Information Retrieval (1992): Proceedings of the 15th Annual International ACM/SIGIR Copenhagen, Denmark, June 21-24, 1992. New York: Association for Computing Machinery, 1992.
Παραπομπή σε μορφή MLA (8th εκδ.)Belkin, Nicholas J., et al. Research and Development in Information Retrieval (1992): Proceedings of the 15th Annual International ACM/SIGIR Copenhagen, Denmark, June 21-24, 1992. Association for Computing Machinery, 1992.
