The Bell System Technical Journal volume XVIII number 4, October 1939.
AT&T 1939, pp 547-748 inclusive, references, diagrams, photographs.
AT&T 1939, pp 547-748 inclusive, references, diagrams, photographs.
AT&T 1943, pp 145-268 inclusive, references, diagrams.
AT&T 1943, pp 269-402 inclusive, references, diagrams, photographs.
BSTJ, AT&T, NY 1951; pp 779-1040 inclusive, photographs, diagrams etc.
AT&T, NY 1959, 1,603 pages plus index at rear; also bound-in are contents of monographs; diagrams, photographs, references.
AT&T, October 1971, pp 2495 - 2856 inclusive, references, diagrams.
American Telephone and Telegraph Co., NY 1963, pp 2501-2974 inclusive, diagrams, some photos, references.
American Telephone and Telegraph Co., NY 1965, pp 547-729 inclusive, diagrams, some photos, references.
AT&T, March 1965, pp 373-pp 546 inclusive, references, diagrams.
AT&T 1965, pp 207-372 inclusive, diagrams and photographs, references.
Bell Tel. Labs, NY 1947, 1956, 1963, 43 pages, diagrams, tables, references.
IEEE Communications Society 1985, pp 397-492, double column text, diagrams and illustrations.
Bell System, November 1970, pp 1995-2415 inclusive, diagrams, references, some photographs.
IEEE Communications Society, 1988, pp. 225-456, double column text, diagrams and illustrations.
IEEE 1976, volume SC-11 1976, numbers 1,2,3,4,5,6; 864 pages in six individual issues, double-column text, illustrations and diagrams, references etc.
IEEE, Communications Society, 1983, pp 961-1141 plus author index, subject index, etc; double column text, illustrations and diagrams.
AES, Audio Engineering Society, NY 1968; pp 258-384 inclusive, double-column text, photographs, diagrams, references, advertisements, etc.
Bell Telephone Laboratories, November 1926, Reprint B-212, reprint of a paper presented at annual meeting of telegraph and telephone section of the Ameircan Railway Association September1926; and published in their Proceedings; 16 pages, some illustr.
AT&T, issued October 1953, orig. published in The Bell System Technical Journal, vol 32, March 1953; 24 pages plus rear foldout chart.