Introduction to work study 

 - revised edition 
 - Geneva  International Labour Office  1970 
 - xx, 436 p. : ill. ; 28 cm. 
<br/><br/> Short guide (10 l.) in pocket. 
<br/><br/>Bibliography: p. 433-436. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Work measurement