Occupational hazards  [microform]. 

 - Ann Arbor, Mich. :  University Microfilms International,  1976-1985. 
 - 1 microfilm reel ;  35 mm. 
 - Vol. 1-7 (Okt 1938-1945)-Vol.25, no. 1-12 (1963) 
<br/><br/><br/>Requires the use of a microfilm reader. 
 = Occupational hazards