Visible record computers /
Mace, Percival William.
Visible record computers / by P.W. Mace. - London : Business Books, 1974. - xvi, 166 p., 32 p. of plates :
0220662487
Visible record computers.
004 / Vi
Visible record computers / by P.W. Mace. - London : Business Books, 1974. - xvi, 166 p., 32 p. of plates :
0220662487
Visible record computers.
004 / Vi