Eckersley, C. E. <br/><br/>
English and American business letters / 
by C. E. Eckersley and W. Kaufman ; il. Charles Salisburg. 
 - Hong Kong :  Longman,  1954 (1975 impr.). 
 - 176 p. :  il. 
 - Books for foreign students .
<br/><br/><label>ISBN: </label>058252606X 
<br/><br/><label>Encabezamiento--Tema: </label><br/>INGLES COMERCIAL