00393nam a22001217a 4500008004100000040005500041080002300096100002100119245004900140260004500189300001000234650002700244230322b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aR 681.3IT(036)bN8  aHarper, Harriet   aInformation technology: bA practical course  aHong Kong: bMacmillan Education, c1988  a102p.  aInformation technology