Ehrman, Madeline Elizabeth. <br/><br/>
The meanings of the modals in present-day American English. 

 - The Hague  Mouton  1966. 
 - 106 p.  26 cm. 
 - Janua linguarum  45 .
<br/><br/>Bibliography: p. [104]-106. 
<br/><br/><label>LCCN: </label>66031338  
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--United States.<br/>English language--Mood.
<br/><br/><label>LC Class. No.: </label>PE2821  / .E35 
<br/><br/><label>Dewey Class. No.: </label>428.2