Peterson, Patricia Wilcox <br/><br/>
Changing perspectives  : a review of the English tense system 

 - Washington, D.C. :  English Language Programs Division,  [Date of publication not identified] 
 - 2 volumes (160, 150 pages) :  illustrations 
<br/><br/> Intermediate/High intermediate. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Tense
<br/><br/><label>Dewey Class. No.: </label>428.2