Delgado, Conchita. <br/><br/>
Manual de referencia para la oficina moderna 
Conchita Delgado, Amelia Maldonado Ruiz. 
 - 2a. ed. 
 - Mexico  McGraw-Hill  c1994. 
 - xiv, 425 p.  ill.  23 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references( p. [368]-372). 
<br/><br/><label>ISBN: </label>9701003160 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Secretaries--Handbooks, manuals, etc.<br/>Commercial correspondence , Spanish.--Handbooks, manuals, etc.