The work reported here is the second stage of a study initially reported in Aslib Occasional Publication no. 3 (The Use of Bibliographic Records in Libraries, by P.A. Thomas and H. East). The earlier paper reported on an analysis of procedures for classification of processes, applicable to all types of libraries, and a statement of what data elements were necessary for each activity within each process. The schematic diagrams of the earlier paper represented the unit activities that must be combined to form an integrated system. In this paper the unit activities have been woven together into a procedural model, using a minimum number of forms and files adequate to recording all the basic activities of a library. This model is not offered as a standard to which libraries should adhere, but as a tool to aid in the design of systems of bibliographic records. A worked example is presented, in which an imaginary library operating under certain local conditions is described, and a forms system is designed for it in accordance with the model. (Author/AB)