DOSPLUS News Information Center (1982-05)(Micro-Systems Software)(US), 1982-05-01

DOSPLUS News Information Center (1982-07)(Micro-Systems Software)(US), 1982-07-01

DOSPLUS News Information Center (1982-09)(Micro-Systems Software)(US), 1982-09-01

DOSPLUS News Information Center (1982-11)(Micro-Systems Software)(US), 1982-11-01

DOSPLUS News Information Center (1983)(Micro-Systems Software)(US), 1983-01-01

DOSPLUS Newsletter (1982-03)(Micro-Systems Software)(US), 1982-03-01