1. A Review of the Literature of Indexer Consistency, Studies in Indexing Depth and Retrieval Effectiveness, NSF GN 380, Unpublished M.A. Thesis, Graduate Library School, University of Chicago, 1967.
2. Indexer Consistency Tests: Origin, Measurements, Results and Utilization, IBM Corporation, Bethesda, Md., 1965.
3. Automatic Indexing: a State-of-the-Art Report, National Bureau of Standards, Washington, D.C., 1965, pp. 156–160.
4. Evaluation of the subject catalog. Criticisms and a proposal
5. Report on the First Stage of an Investigation into the Comparative Efficiency of Indexing Systems, Aslib Cranfield Research Projects, The College of Aeronautics, Cranfield, England, 1960, pp. 107–116.