00494nam a2200181 a 450000500170000002000150001708200130003210000210004524500240006626000410009030000240013149000210015569000240017696400190020099700180021999900170023795200580025420251203091826.0  a007Y851751  a001bDON  aDonovan, John J.  aSystems programming  aAuckla; New DelhibMcGraw-Hillc1972  axviii,488p.c23 cm.  aComputer science  aSystems programming  bENGcdefg_  a60359 LIBSC C  c54059d54059  00104070aPUbPUd1998-04-08l0o001 DONp60359yBK