New Jersey. State Dept. of Education. Bureau of Assessment and Evaluation. Office of Research Information.
Vladik Kreinovich
M. Z. Zhurovsʹkyĭ
United States. Bureau of the Budget.
Denis A. Benson
Unknown Author
United States. Congress. House. Committee on Post Office and Civil Service.
United States. General Accounting Office
Sigrid Poser
Edwin Black
United States. Bureau of Labor Statistics
Ronald P. Cody
British Columbia School Trustees Association. Regional Data Processing Centre.
Research Group
United States. Congress. House. Committee on Post Office and Civil Service. Subcommittee on Census and Statistics.