1.
Computing in the Middle Ages A View from the Trenches 1955-1983
by Ornstein, Severo M.
ISBN: 9781403315175
List Price: $14.95
2.
Computing in the Middle Ages: A View from the Trenches 1955-1983
by Ornstein, Severo M.
ISBN: 9780613912402
List Price: $24.55