Chambers perfect punctuation. 

 - Edinburgh :  Chambers,  2005. 
 - 163 p.:  15 cm. 
 - Desktop guides .
<br/><br/> Includes index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0-550-10139-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Punctuation
<br/><br/><label>LC Class. No.: </label>421.1 C35