Proceedings of the IRE volume 37 number 3, March 1949.
IRE 1949, pp 226 - 336 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps as issued.
IRE 1949, pp 226 - 336 inclusive, plus sep. numbered adverts. at front and rear. Whole issue in original wraps as issued.
Electronics research publishing co, NY 1947 first edition; 202 pages,Cross Index of Subjects at rear.