RS-232 Made Easy -- Connecting Computers, Printers, Terminals and Modems.
Prentice-Hall NJ, 1984, later printing; 214 pages, index, bibliography, appendices, diagrams ISBN 0137834721.
Prentice-Hall NJ, 1984, later printing; 214 pages, index, bibliography, appendices, diagrams ISBN 0137834721.