Proceedings of the IRE volume 37 number 9, September 1949.
IRE 1949, pp 978 - 1104 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issu.
IRE 1949, pp 978 - 1104 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps, as issu.
American Technical Soc. Chicago IL, 1957 first edition; 261 pages, diagrams, photographs, Index.
McGraw-Hill NY, 1950; stated first edition; 451 pages, Index, diagrams, References at ends of each Chapter section.
Prepared by Bell Telephone Laboratories, Inc for Western Electric Co, Inc, New York, NY 1951; 792 pages.