Anthraco-silicosis (Miners' asthma) : a preliminary report of a study made in the anthracite region of Pennsylvania /
Title
Anthraco-silicosis (Miners' asthma) : a preliminary report of a study made in the anthracite region of Pennsylvania / by United States Public Health Service.
Publication
Harrisburg, Pa. : Commonwealth of Pennsylvania, Dept. of Labor and Industry, 1934.