Bell System Technical Journal, Tables of Contents and Cumulative Index, volumes XXI XXX, 1942 - 1951.
American Telephone & Telegraph Co, NY, n.d., ca. 1952; 32 pages.
American Telephone & Telegraph Co, NY, n.d., ca. 1952; 32 pages.
IRE 1949, pp 338 - 464 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issued.
Association for Computing Machinery 1966. pp 471-629, i-iv at rear Table of Contents for entire vol.
AT&T 1965, pp 207-372 inclusive, diagrams and photographs, references.