Yaglom, A.M. .
Challenging mathematical problems with elementary solutions / by A.M. Yaglom and I.M. Yaglom. - New York : Dover Publications, INC. , 1967 - 2 vols ;
0-486-65536-9
Mathematics
B / K7
Challenging mathematical problems with elementary solutions / by A.M. Yaglom and I.M. Yaglom. - New York : Dover Publications, INC. , 1967 - 2 vols ;
0-486-65536-9
Mathematics
B / K7