The health of workers in dusty trades
Subtitle: 1 : Health of workers in a Portland cement plant
By: by L.R. Thompson [and others]
Series: Public health bulletin -- no. 176
Publisher: Government Printing Office
Published: 1928
Place of publication: Washington, D.C
Language: eng
Number of pages: 138
Subjects: Dust; Portland cement industry; Cement industry workers; Lung Diseases; Occupational Diseases
Notes: At head of title: Treasury Department. United States Public Health Service.

Dated "April, 1928".