American Telephone & Telegraph Co, NY, n.d., ca. 1941 and 1952; 48 pages and 32 pages.
Condition: Very Good overall, both booklets; 1932-1941 volume, green-blue heavy paper wraps, chipped along spine ends, corners bent, stapled binding secure, pages clean; 1942-1951 volume, light blue heavy paper wraps, stapled binding, some fading along spine and edges, light creases; tight, pages clean and unmarked.
Categories: 1950's computers and computing, Cryptanalysis, Cryptology, Computer Security, Cybernetics, Artificial Intelligence, Robotics, Electronic and Electrical Engineering, General Histories and References, Highspots in the History of Computing, Mathematics, Programming and Programming Languages, General Programming, Philosophy of Programming, Technical Journals, Proceedings, Conferences, Bell System Technical Journals, BSTJ 1940 - 1949, BSTJ 1950 - 1959, BSTJ pre-1940
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