Frank, . <br/><br/>
Theory And problems of matrics /  Textual Documents 
Frank,Ayres. 
 - Sl :  Sn ,  1829. 
 -  ill ; 
<br/><br/><label>Subjects--Index Terms: </label>Economics 
<br/><br/><label>Dewey Class. No.: </label>311.2  / Ay 71 Th