Abstracting and indexing services in perspective : Miles Conrad memorial lectures, 1969-1983, commemorating the twenty-fifth anniversary of the National Federation of Abstracting and Information Services / Neufeld, M. Lynne. Cornog, Martha. Sperr, Inez L. National Federation of Abstracting and Information Services (U.S.) Abstracting and indexing services. Information services. 025 AIT 1983 C162 Or. Index inserted in pocket. Arlington, Va. : Information Resources Press, 1983. 1983. Text xi, 300 p. :