000 00288cam a22001097a 4500
008 180718b1987 xxu||||| |||| 00| 0 eng d
082 _aI5372 W892 LC
245 _aWorkbook: Ashton-Tata training courses
260 _aDelhi
_bBPB Publications
_c1987
300 _a106p.
650 _aComputers
999 _c356588
_d356588