1. D. L. Horrocks, Application of Liquid Scintillation Counting, Academic Press, New York, 1974.
2. W. J. McDowell, “Liquid Scintillation Counting Techniques for the Higher Actinides”, in Organic Scintillator and Liquid Scintillation Counting. /Eds. D. L. Horrocks and C. T. Pens, Academic Press, New York, 1971, p. 937.
3. W. J. McDowell, C. F. Coleman, “Combined Solvent Extraction-Liquid Scintillation Method for Radioassay of Alpha Emitters”, in Proceedings of International Solvent Extraction Conference, London, 1974.
4. W. J. McDowell, “Alpha Liquid Scintillation Counting: Past, Present, and Future”, in Liquid Scintillation Counting, Recent Applications and Developments /Eds. C. T. Pens, D. L. Horrocks, and E. L. Alpen/, Academic Press, New York, 1980, pp. 315–346.
5. W. J. McDowell, G. N. Case, “Separation and Methods for Alpha Assay by Liquid Scintillation”, in Chemical Aspects of Nuclear Methods of Analysis, IAEA-TECDOC-350, 1985, p. 33.