TY  - DATA
TI  - USA and international mathematical olympiads 2005 
T2  - Problem Books, 
SN  - 9781470458195 (online)
PY  - 2006///
CY  - Washington, DC
PB  - Mathematical Association of America
KW  - Mathematics
UR  - https://doi.org/10.1090/prb/017
ER  -