The Bell System Technical Journal 3 individual issues 1954 March, July, September.
AT&T BSTJ, 1954, volume XXXIII nos. 2, 4, 5, diagrams, references.
AT&T BSTJ, 1954, volume XXXIII nos. 2, 4, 5, diagrams, references.
American Telephone & Telegraph, July 1954; pp 799-1022; illus, photos, refs; light blue paper wraps.