Elsness, Johan  . <br/><br/>
Perpect and the preterite in contemporary and earlier english /  
by Johan Elsness. 
 - Berlin :   Mouton de Gruyter ,   1997 
 - xv, 432p :  
<br/><br/><label>ISBN: </label>3-11-014686-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Preterite
<br/><br/><label>Dewey Class. No.: </label>P111,D  / N7