00367nam a2200133 a 450000500170000002000150001708200160003210000200004824500570006825000120012526000390013730000260017670000310020220251203110915.0  a817758555X  a005.43bBEC  aBeck, Leland L.  aSystem softwarebintroduction to systems programming  a3rd ed.  aNew DelhibPearson Educationc2007  axv, 495p.c22 cm.bPB  aManjula, Dhanabalachandran