Statistical Abstract of the United States, 1973, US Department of Commerce, July 1973, pp 5 & 70.
2.
The Bureau of National Affairs, Inc.The Job Safety and Health Act of 1970. Operations Manual, Prepared by the Editorial Staff of the Bureau of National Affairs, Inc.: Washington, DC, 1971.
3.
BurkeenOE: The role of the occupational health nurse in performing health examinations. Occup Health Nurs, pp 22–26, May 1973.
4.
In the news: Role of paramedics grows in health screening. Industr Med Surg, Vol. 42, No. 7, p 10, July/August 1973.
5.
DuffyJC: Trends in occupational health as viewed by the physician. Occup Health Nurs, pp 16–18, June 1973.