O'Neill, Ana María,  1894- <br/><br/>
La psicología en la correspondencia comercial / 
por Ana María O'Neill. 
 - 5th ed., rev. 
 - New York :  Gregg Pub. Division, McGraw-Hill,  c1951. 
 - 464 p. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 449-452) and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commercial correspondence, Spanish.<br/>Spanish language--Business Spanish.
<br/><br/><label>LC Class. No.: </label>HF 5728  / O58p 1951 
<br/><br/><label>Dewey Class. No.: </label>651.74