Hopper, Paul J  . <br/><br/>
Grammaticalization /  
by Paul J. Hopper and Elizabeth Closs Traugott. 
 - Cambridge :   Cambridge University Press ,   1993 
 - xxi, 256p :  
<br/><br/><label>ISBN: </label>0-521-36684-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Grammar, comparative and general-Grammaticalization
<br/><br/><label>Dewey Class. No.: </label>P  / N3