Revista de la Asociación de Oficiales de Saneamiento / 
AOSPR 
 - San Juan, P.R.  1959- 
 - volumes :  illustrations (black and white) ;  24 cm.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sanitation--Puerto Rico--Periodicals
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Periodicals.