Los gobernadores electos de Puerto Rico. 

 - Río Piedras, P.R.  19- 
 - v.  illus., ports. 
<br/><br/> Part of text in English. 
<br/><br/>Includes bibliographies. 
<br/><br/>v. 1. Luis Muñoz Marín (1949-1950) 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Governors.