Witheford, David K. <br/><br/>
Speed enforcement policies and practice 
[by] David K. Witheford. 
 - Saugatuck, Conn.,  Eno Foundation for Transportation,  1970. 
 - x, 133 p.  illus.  23 cm. 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>72109499  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Speed limits--United States.
<br/><br/><label>LC Class. No.: </label>HE5620.S6  / W56 
<br/><br/><label>Dewey Class. No.: </label>388.31  / WIT