Chrystal, George  1851-1911 <br/><br/>
Algebra; an elementary text-book for the higher classes of secondary schools and for colleges 

 - 7a. ed. 
 - New York :   Chelsea,   1964. 
 - 2 v. :   il. ;   21 cm. 
<br/><br/> Apéndice, p. 543-554 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ALGEBRA
<br/><br/><label>Universal Decimal Class. No.: </label>512