Published by Avon, New York, 1971
Seller: Wormhole Books, Kunyung, VIC, Australia
Paperback. Condition: Good. Reprint. 288 pp. (Originally published in 1950.) Light general and edgewear to illustrated covers. Faint yellowing to edges of text block and outer page margins. Internally clean, bright, solidly bound. "Applies insights gained in computer technology to the study of human communications." Size: 12mo.