Informe anual. 

 - San Juan, P.R.  1972- 
 - v.  illus., graphs, photos, tables. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic safety--Puerto Rico.<br/>Accidents--Prevention.--Puerto Rico<br/>Traffic accidents--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico--Traffic.