Coal dust and black lung.  [electronic resource] 

 -  Occupational health & safety (Waco, Tex.)  Apr 1993 
 - 26, 33 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0362-4064 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal Mining<br/>Government Agencies<br/>Humans<br/>Pneumoconiosis--prevention & control<br/>United States