00277nam a2200109 a 450000500170000008200180001710000220003524500310005726000450008830000230013363000110015620251202164222.0  a005.133PbPET  aPeters ,  James F  aPascal with program design  aNew YorkbHolt, Rinehart & Winstonc1986  a610 p.b22 cm.cPB  aPASCAL