Longman English Grammar Practice for intermediate students / 
L.G. Alexander 
 - New York :  Longman,  1990 
 - 296 tr. ;  20 cm 
<br/><br/><label>Subjects--Index Terms: </label>Longman Ngữ pháp Tiếng Anh 
<br/><br/><label>Dewey Class. No.: </label>428  / Al261L