Bernard Comrie <br/><br/>
Aspect  An Introduction to the study of verbal aspect and related problems 

 - Cambridge, New York, Melbourne  Cambridge University Press  1976, Reprinted 1978, 1981, 1985, 1991, 1995, 1998 
<br/><br/><label>ISBN: </label>0-521-29045-7 
<br/><br/><label>Dewey Class. No.: </label>416.11COMA