Ledermann, Walter <br/><br/>
Introduction to group charecters 

 - 2nd ed. 
 - Cambridge  CUP.  1987 
 - x,227p.  23 cm. 
<br/><br/><label>ISBN: </label>052133781X 
<br/><br/><label>Dewey Class. No.: </label>512.22,  / D, led