TY  - DATA
AU  - Wells, Dave
AU  - Faires, J. Douglas.
TI  - The contest problem book IX: American Mathematics Competitions (AMC 12) 2001-2007 
T2  - Problem Books, 
SN  - 9780883859643 (online)
PY  - 2008///
CY  - WAshington, DC
PB  - Mathematical Association of America
KW  - Mathematics
UR  - https://www.ams.org/prb/018
ER  -