Butch learns to lift. 

 - [Washington,  U.S. Govt. Print. Off.,  1949] 
 - [12] p.  illus.  14 cm. 
 - Its Bulletin,  no. 113 .
 - Bulletin (United States. Bureau of Labor Standards) ;  113. .
<br/><br/> Cover title. 
<br/><br/><label>LCCN: </label>l  49000067  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lifting and carrying.
<br/><br/><label>LC Class. No.: </label>T55.3.L5  / U5 1949 
<br/><br/><label>Dewey Class. No.: </label>331.823