A system for describing the specific elements that constitute any psychological intervention is presented. The system includes 39 operations or controlling responses which may be administered by the psychologist, the client, or both together. Varying the administration of the operations can provide over 100 source/operation elements in the coding…

A number of questions are raised and discussed with reference to displaying for the library client the relevant facts about a work in microform in such a way that the client knows exactly where to find it. The following questions are addressed: 1) whether to use a subject-classification system, a form-code/accession-numbering system, or some…