"john, s. "
computer systems a basic guide for managers: / s. john - 1 ed. - uk : chartered accountants 1978. - ", 20p.; 21 cm."
0 85291 178 x
computer systems a basic guide for managers: / s. john - 1 ed. - uk : chartered accountants 1978. - ", 20p.; 21 cm."
0 85291 178 x