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Author

Helmut Tornsdorf

5 books found

Cover of MS-DOS 6.2

Ms-Dos 6.2

Helmut Tornsdorf, Manfred Tornsdorf · First published 1994

Cover of DOS 6.0 complete

DOS 6.0 complete

M. Tornsdorf, Manfred Tornsdorf, Helmut Tornsdorf · First published 1993

Cover of Quickbasic for Beginners

Quickbasic for Beginners

Helmut Tornsdorf · First published 1991

Cover of Trucs et astuces MS-DOS

Trucs et astuces MS-DOS

Helmut Tornsdorf · First published 1989

Cover of GEOs

GEOs

M. Kerkloh, R. Kerkloh, Helmut Tornsdorf · First published 1987