Webster, F. V. <br/><br/>
Traffic signal settings / 
by  F. V. Webster. 
 - London,  H. M. S. O.,  1958. 
 - iv, 44 p. :  diagrams., tables ;  25 cm. 
 - Road Research Technical Paper ;  no. 39. .
<br/><br/> [Copy 2 bound with Road Research Board, Technical paper, no. 40-no. 46 subsequent to publication.] 
<br/><br/><label>ISBN: </label>04711039 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic signs and signals--London.--England
<br/><br/><label>Dewey Class. No.: </label>388.31