Know your traffic signs :  official edition. 

 - 5th ed. 
 - London :  Stationery Office,  2007. 
 - 144p. ;  col ill. ;  21 cm. 
<br/><br/> Previous ed.: London : HMSO, 1995. 
<br/><br/><label>ISBN: </label>9780115528552 (pbk.) :  £4.99 0115528555 
<br/><br/><label>Nat. Bib. No.: </label>GBA785289  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Traffic signs and signals--Great Britain--Handbooks, manuals, etc.