Stallings, William
Business data communications - 2nd ed. - New York Macmillan College 1994 - xix, 658 p.
133484831
Information management
658.4038 / STA
Business data communications - 2nd ed. - New York Macmillan College 1994 - xix, 658 p.
133484831
Information management
658.4038 / STA