00288nam a2200109 a 450000500170000008200160001710000060003311000250003924500410006426000560010530000170016120251203091554.0  a510.76bINT  d_  aGreitzer, Samuel, L.  aInternational mathematical olympiads  aNew YorkbMathematical Association of Americac1978  a204p, 22 cm.