Wiley Jenkins
World Health Organization. Expert Committee on Health Laboratory Methods.
Rubert W. Boyce
W. C. Sawers
U.S. Directory Service.
Great Britain. Public Health Laboratory Service
Henry R. Kenwood
Unknown Author
Montana. Dept. of Public Health and Human Services
James Stevens Simmons
Rand McNally
World Health Organization. Expert Committee on Health Laboratory Services.
Herbert L Lawton
Tanzania. Wizara ya Afya na Ustawi wa Jamii
David Sommerville
World Health Organization. Regional Office for the Western Pacific
Warren Johns
United States. General Accounting Office