Peterson, Patricia Wilcox <br/><br/>
Changing times, changing tenses :  A review of the english tense system /   
Patricia Wilcox Peterson 
 - U. S. A.  1980 
 - 155 p.  fig., pic., ill., tbl.  25.2 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Standard English usage<br/>İngilizce'nin kullanımı
<br/><br/><label>Dewey Class. No.: </label>428.2 PET