J. Davson
National Silicosis Conference (2d 1937 Washington, D.C.)
Angus Daniel Campbell
American Public Health Association. Committee on Pneumonoconioses
South Africa. Commission of Enquiry into the Functioning of the Silicosis Medical Bureau and the Silicosis Medical Board of Appeal.
Lewis Gregory Cole
Kaj Ahlman
Vincenzo Guardascione
Unknown Author
Albert Lawrence Godbert
Switzerland) International Conference on Silicosis (2nd 1938 Geneva
Great Britain. Factory Department. Ministry of Labour and National Service
India. Office of the Chief Adviser, Factories.
Susanna H. Petersen
Paul Edwards
Carey Pratt McCord
William Hargreaves
R. R. Sayers