Shklarsky, D. O. . <br/><br/>
The USSR Olympiad Problem Book /  Textual Documents 
D. O. Shklarsky, N. N. Chentzov, & I. M. Yaglom. 
 - 1st ed / 
 - New York :  Dover Publications Inc. ,  1993. 
 - 452p ;  23 cm. 
<br/><br/><label>ISBN: </label> HB 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics T/G-mathematics 
<br/><br/><label>Dewey Class. No.: </label>510  / Sh 69 Us