000 00000nam a2200000 a 4500
005 20251202164322.0
082 _a005.36
_bDUF
100 _aDuffy, Tim
245 _aFour software tools
260 _aWadsworth
_c1986
300 _a575 p.
_c24 cm.
_bPB
630 _aPC-DOS (Computer file)
630 _aMS-DOS (Computer file)
630 _aLotus 1-2-3 (Computer file)
964 _b
_c
_d
_e
_f
_g_
997 _a9787 C
999 _c7428
_d7428