Gardiner, John A. <br/><br/>
Traffic and the police: variations in law-enforcement policy 
by John A. Gardiner 
 - Cambridge  Harvard University Press  1969 
 - viii, 176p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic regulations -Massachusetts.<br/>Traffic police -Massachusetts
<br/><br/><label>Dewey Class. No.: </label>N45 G168