Ellenbogen, Abraham. <br/><br/>
Letter perfect :  a business person's guide to more effective correspondence / 
Abraham Elenbogen. 
 - Rev . ed. 
 - New York :  Collier Books,  1978 
 - ii, 129 p. :  ill. ;  28 cm. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0020799403 
<br/><br/><label>LCCN: </label>7817700  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial correspondence.