Kossoris, Max Davis. <br/><br/>
Studies of the effects of long working hours. 
By Max D. Kossoris. 
 - [Washington,  U.S. Govt. Print. Off.,  1944- 
 - v.  tables, diagrs.  23 cm. 
 - U.S. Bureau of Labor Statistics. Bulletin no. 791, 791-A .
<br/><br/> At head of title: United States Dept. of Labor, Frances Perkins, Secretary. Bureau of Labor Statistics, Isador Lubin, Commissioner (on leave) A.F. Hinrichs, Acting Commmissioner.  Appears also in part in the Monthly labor review. 
<br/><br/><label>LCCN: </label>l  44000221  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hours of labor.<br/>Industrial efficiency.
<br/><br/><label>LC Class. No.: </label>HD8051  / .A62 no. 791, 
<br/><br/><label>Dewey Class. No.: </label>331.81