Annual report 19- 

 - [San Juan, P.R.  CORCO  19- 
 - v.  graphs. 
<br/><br/> Cover title. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oil industries--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Industries.