Theoretical issues in information retrieval :
proceedings of the Fourth International Conference on Information Storage and Retrieval, Oakland, California, May 31-June 2, 1981 /
sponsored by Association for Computing Machinery, Special Interest Group on Information Retrieval, ACM-SIGIR ; edited by Carolyn J. Crouch.

APA Citation

International Conference on Information Storage and Retrieval (4th : 1981 : Oakland, C., Crouch, C. J., ACM Digital Library., Association for Computing Machinery. Special Interest Group on Information Retrieval. (1981). Theoretical issues in information retrieval: proceedings of the Fourth International Conference on Information Storage and Retrieval, Oakland, California, May 31-June 2, 1981. New York, N.Y.: ACM.

MLA Citation

International Conference on Information Storage and Retrieval (4th : 1981 : Oakland, Calif.), Carolyn J Crouch, ACM Digital Library, and Association for Computing Machinery. Special Interest Group on Information Retrieval. Theoretical Issues In Information Retrieval: Proceedings of the Fourth International Conference On Information Storage And Retrieval, Oakland, California, May 31-June 2, 1981. New York, N.Y.: ACM, 1981.

Warning: These citations may not always be complete (especially for serials).