Describes operational use of on-line field access, a powerful improvement upon search key access to on-line records and a viable alternative to full key word access; and discusses some of the questions considered at Northwestern University Library during a redesign of the technical services modules of the Northwestern On-Line Intergrated System…

A pilot study at the University of Arizona library reports improvement in verification of questionable citations by using RLIN and OCLC as reference tools in place of print sources. A further full-scale study is planned. (RAA)