Nolla Acosta, Juan José, <br/><br/>
Elecciones de Puerto Rico (1899-2012) 
 Historia electoral de Puerto Rico 
Juan José Nolla-Acosta. 
 - Ponce, PR  [s.n.]  2012. 
 - v.  ill., tables.  28 cm. 
<br/><br/>Bibliography : (p. 250-251). 
<br/><br/>v.1.1899-1948. -- v.2.1949-2012. 
<br/><br/><label>ISBN: </label>9781105856334 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Elections--History.--Puerto Rico
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Politics and government--History.