00305nam a2200109 a 450000500170000002000150001708200180003210000190005024500630006926000400013230000230017220251202164129.0  a0201117762  a005.133PbLED  aLedgard, Henry  aProfessional pascal: essays on the practice of programming  aMassachusetts: Addison-Wesleyc1986  axiii,238p.c22 cm.