Blyton, Paul. <br/><br/>
Changes in working time :  an international review / 
Paul Blyton. 
 - New York :  St. Martin's Press,  1985. 
 - 184 p. 
<br/><br/>Bibliography, (p. 171-179) and index. 
<br/><br/><label>ISBN: </label>0312129378 
<br/><br/><label>LCCN: </label>93013060     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hours of labor.<br/>Work.