Gran enciclopedia de Puerto Rico 
directores, Sarah Díez Trigo y Lucas Morán Arce ; colaboradores, Ramón Luis Acevedo ... [et al.]. 
 - 4a ed. rev. 
 - San Juan, P.R.  Scholastic : Caribe Grolier  c2004. 
 - 6 v. :  ill. (some col.), maps (some col.), ports. ;  29 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0717251659 (set)  480.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Puerto Rico--Dictionaries and Encyclopedias.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--History.<br/>Puerto Rico--Encyclopedias.