Leffingwell, William Henry  1876-1934 <br/><br/>
Textbook of office management / 
William H. Leffingwell,  Edwin M. Robinson. 
 - 3rd ed. 
 - New York:   McGraw-Hill,   1950.  
 - xiv, 649 p. :  ill. ;  24 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Office management
<br/><br/><label>Dewey Class. No.: </label>651