The Natural history of chronic bronchitis and emphysema: an eight year study of early chronic obstructive lung disease in working men in London  Charles Fletcher...[et al.]. 

 - Oxford  Oxford Univ.  1976 
 - xix, 272p., 23cm. 
<br/><br/> Inlcudes bibliographical references and indes. 
<br/><br/><label>ISBN: </label>0-19-261119-4. 
<br/><br/><label>Dewey Class. No.: </label>616.23009  / N28N