Vas, Gratian. <br/><br/>
The complete guide to business letter/ / 
Gratian Vas. 
 - viii, 173 p. ;  22 cm. 
<br/><br/><label>ISBN: </label>978-81-207-1862-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Business letters.<br/>Business writing--programmed instruction.