Today and Tomorrow— The Occupational Health Nurse's Broadening Responsibility

D'Alonzo C. A. , M.D., Modern Occupational Medicine, Fleming A. J. M.Sc., M.D., F.A.C.P., D'Alonzo C. A. , M.D., F.A.C.P. and Zapp J. A. Ph.D. eds. (Philadelphia, Lea & Febiger, 1954), chapter 2.

American Medical Association, Council on Occupational Health, Guide for the Development of Medical Directives for Occupational Health Nurses, 1962.