A special report on Puerto Rico aqueduct and sewer authority. 

 - San Juan, P.R.  Government Development Bank of Puerto Rico  1970. 
 - 20 p.  illus. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water supply--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Sewerage.