Cahill, Marion Cotter,  1901- <br/><br/>
Shorter hours :  a study of the movement since the civil war / 
by Marion Cotter Cahill 
 - New York :  Columbia University Press,  1932 
 - 300 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hours of labor--United States<br/>Labor and laboring classes--United States