Ocasio Meléndez, Marcial E. <br/><br/>
Estados Unidos  su trayectoria histórica 
Marcial E. Ocasio. 
 - San Juan, Puerto Rico  Editorial Cordillera  2010. 
 - xi, 528 p.  ill., maps  28 cm.  1 CD-ROM (4 3/4 in.) 
<br/><br/>Includes bibliographical references (p. 516-522) and index. 
<br/><br/><br/>Systems requirements for accompanying computer disc: PC or compatible with CD drive, Adobe Acrobat reader. 
<br/><br/><label>ISBN: </label>9780884952145 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History.<br/>United States