00372nam a2200145 a 450000500170000002000150001708200160003210000240004824500370007225000110010926000300012030000210015049000330017170000220020420251203110829.0  a8181286345  a510.76bSOU  aDe Souza, Paulo Ney  aBerkeley problems in mathematics  a3rd ed  aNew DelhibSpringerc2007  a591p.c24 cm. PB  aProblem books in mathematics  aSilva, Jorge-Nuno