McCarthy, M <br/><br/>
911 system tracks cellular calls.  [electronic resource] 

 -  Emergency medical services  Aug 1995 
 - 30 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0094-6575 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Automobiles<br/>Emergency Medical Service Communication Systems<br/>Geography<br/>Telephone<br/>United States