United States. Bureau of Labor Statistics.
Canada. Industry, Science and Technology Canada.
United States. Bureau of Foreign and Domestic Commerce
National Union of Foundry Workers of Great Britain and Ireland.
National Institute for Occupational Safety and Health.
William Woodruff
Satyaki Roy
R. D. A. Parrott
Canada. Department of Industry, Trade and Commerce.
United States. National Park Service
John Jeffrey
Working Party on Refractories for Electric Furnaces.
William Lamson Warren
General Iron Foundry Co. Ltd.
Nathan Mortimer Hawkes
Hiroshi Tanaka
Toshirō Kuroiwa
Dorothy Jean Aickman
Harry Czyzewski