Swan, Michael. <br/><br/>
Practical English usage / 
Michael Swan. 
 - 3rd impression. 
 - Oxford ;  New York :  Oxford University Press,  1981. 
 - xxiv, 639 p. ;  23 cm. 
<br/><br/><label>ISBN: </label>0194311856 (pbk.) :  £2.95 0194311864 :  £5.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Usage.
<br/><br/><label>LC Class. No.: </label>PE1106  / .S94 1981