New York, American Telephone and Telegraph Company, 1959. 8vo. In the original printed blue wrappers. In ""The Bell System Technical Journal"", Volume XXXVIII, Number 5, September, 1959. Entire issue offered. Previous owner's name to front wrapper. A very fine fine and clean copy. Pp. 1067-1178. [Entire issue: 1167-1336 pp.].
First printing.