00253nam a2200109 a 450000500170000008200210001710000180003824500310005625000120008726000220009930000220012120251203091526.0  a001.6424C,PUGb_  aPugh, Kenneth  aC language for programmers  a2nd ed.  aDelhi: BPB.c1990  avii,204p.c22 cm.