Relatively recent developments, ranging from microfilm catalogs to networked circulation systems, have the potential of removing much of the uncertainty from the routing of interlibrary loan requests. The opportunity of purchasing location and availability information changes the performance of a model interlibrary loan network. Data collected in…

This is a general descriptive and comparative report on alternative forms of library catalogs. The specific problems and factors associated with library catalogs are introduced briefly and then treated with respect to the following physical forms: card catalogs, book catalogs, microforms, and on-line catalogs. Whenever possible, examples of…

A practical system for producing a union catalog of titles in the collections of the Library of Congress Division for the Blind and Physically Handicapped (DBPH), its regional network, and related agencies from a machine-readable data base is presented. The DBPH organization and operations and the associated regional library network are analyzed.…