000			00590nam a2200193 a 4500
001			000422103
003			dti
005			20170506183538.0
008			050421s1989 000 0 eng
020			_a0314503307
100	1		_aRuff, Laura.
245	1	0	_aUnderstanding and using MS-DOS / PC DOS : _bthe first steps / _cby Laura Ruff, Mary Weitzer.
260			_aSt.Paul, Id. : _bWest Publ. Comp., _c1989.
300			_axix, 118 p., I-3
440		0	_aThe Microcomputing Series.
650		0	_aComputer science.
650		0	_aMS-DOS (Computer operating system).
700	1		_aWeitzer, Mary.
999			_c360586 _d360586