Honsberger, Ross .
From Erdos to Kiev problems of olympiad caliber / by Ross Honsberger. - USA : The Mathematical Association of America , 1996 - xii, 257p ;
0-88385-324-8
Olympiad
B / N6
From Erdos to Kiev problems of olympiad caliber / by Ross Honsberger. - USA : The Mathematical Association of America , 1996 - xii, 257p ;
0-88385-324-8
Olympiad
B / N6