The Bell System Technical Journal vol 57 no. 5, May-June 1978, single issue.
AT&T 1978, pp 1231-1715 inclusive, diagrams, photographs, references.
AT&T 1978, pp 1231-1715 inclusive, diagrams, photographs, references.
Bell Telephone Laboratories, September 1927, Reprint B-262; 51 pages, reprint of paper published in The Bell System Technical Journal, vol VI July 1927.
Institute of Radio Engineers December 1962, 130 pages, Illustrations, References.
IRE 1949, pp 1362 -1496 inclusive, plus sep. numbered adverts. at front and rear, and cumulative 1949 Index at rear.
The Institute of Radio Engineers, September 1958,pp 1571-1682 inclusive; Illustrations, Refrences.