Century 21 typewriting;  complete course 
[by] D. D. Lessenberry [and others] 
 - Cincinnati,  South-Western Pub. Co.  [1972] 
 - 428, xvi p.  illus.  23 x 29 cm. 
<br/><br/> Previous editions published under title: 20th century typewriting, by D. D. Lessenberry. 
<br/><br/><label>ISBN: </label>0538207000 
<br/><br/><label>LCCN: </label>70169159  
<br/><br/><label>LC Class. No.: </label>Z49  / .C43 
<br/><br/><label>Dewey Class. No.: </label>652.3/024