Swan, Michel <br/><br/>
Pratical English Usage 
/ by Michael Swan 
. - 3rd edition 
. - Oxford  : Oxford university press, 1980
. - 639.p  ; 24 cm 
<br/><br/>Index 
<br/><br/><label>ISBN: </label>0194311856 
<br/><br/><label>Source: </label> Don  
<br/><br/><label>Universal Decimal Class. No.: </label>802.5