Portner, Paul <br/><br/>
Modality / 
Portner, Paul. 
 - Oxford:  OUP,  2009. 
 - 288p;25cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0199292431 
<br/><br/><label>Dewey Class. No.: </label>415 POR