Teach them to lift. 

 - [Washington,  U.S. Govt. Print. Off.,  1949] 
 - 8 p.  illus.  24 cm. 
 - Its Bulletin,  no. 110 .
 - Bulletin (United States. Bureau of Labor Standards) ;  110. .
<br/><br/> Cover title. 
<br/><br/><label>LCCN: </label>l  49000049  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lifting and carrying.
<br/><br/><label>LC Class. No.: </label>T55.3.L5  / U52 1949 
<br/><br/><label>Dewey Class. No.: </label>331.823