Anuario estadístico = Statistical Yearbook. 

 - San Juan, P.R.  [s.n.]  19- 
 - v.  ill. 
<br/><br/> Title varies: 1949/50, Annual book of statistics of Puerto Rico [varies slightly]  Part of text in English. 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Statistics--Yearbooks.