00261nam a2200109 a 450000500170000002000150001708200190003210000170005124500320006826000290010030000220012920251203091745.0  a8120303881  a004.1,bD, Dro  aDromey, R.G.  aHow to solve it by computer  aDelhibMcGraw-Hillc1995  axx, 442p.c23 cm.