The Contest problem book IX :
Wells, David
The Contest problem book IX : American mathematics competitions (AM 12), 2001-2007 / Ed. by David Wells and J. Douglas Faires - Washington Mathematical Association of America 2008 - xvi, 214p;pbk - MAA problem books series .
9780883858264
Mathematics
Mathematics-Competition-United States
Mathematics-Examinations, questions etc
Mathematics-Problems, exercises etc
510.76 / MAA
The Contest problem book IX : American mathematics competitions (AM 12), 2001-2007 / Ed. by David Wells and J. Douglas Faires - Washington Mathematical Association of America 2008 - xvi, 214p;pbk - MAA problem books series .
9780883858264
Mathematics
Mathematics-Competition-United States
Mathematics-Examinations, questions etc
Mathematics-Problems, exercises etc
510.76 / MAA