00377nam a2200133 a 450000500170000002000150001708200160003210000220004824500660007025000120013626000460014830000250019470000240021920251203110616.0  a0471433403  a515.35bHAI  aBoyce, William E.  aElementary Differential Equations and Boundary Value Problems  a8th ed.  aNew JerseybJohn Wiley & Sons, Inc.c2005  a277p.c24 cm. PBeCD  aDiprima, Richard C.