Ball, W.J. <br/><br/>
Dictinary of english grammr  : based on common errors 
/ W.J. Ball and F.T. Wood 
. - London  : Macmillan, 1986
. - 156p.  ; 22 cm. 
<br/><br/><label>ISBN: </label>0333413350 
<br/><br/><label>Source: </label> Don 
<br/><br/><label>Universal Decimal Class. No.: </label>802.0.002.