Palmer, Frank Robert, <br/><br/>
Studies on English Modality : 

 -  Peter Lang,  2009. 
 - 406 pages 
<br/><br/><label>ISBN: </label>9783034303101 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Foreign Language Study.
<br/><br/><label>Dewey Class. No.: </label>425  / TSA