1990 Census of population  social and economic characteristics : Puerto Rico = Censo de población de 1990 : características sociales y económicas : Puerto Rico. 

 - Washington  Bureau of the Census  1993. 
 - 2 v.  tables, maps.  28 cm. 
<br/><br/> 1990 CP-2-53  1990 CP-1-53 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Population--Statistics.