Erscheinungsdatum: 1933
Anbieter: Xerxes Fine and Rare Books and Documents, Glen Head, NY, USA
Erstausgabe
Zustand: Good. NY 1933 first edition. ATT. Original blue printed wraps. Fletcher article on pp. 377-430. Other articles in issue as well. Issue paginated pp.377-539. Good, light cover wear; text clean. no ownership marks.
Anbieter: Herman H. J. Lynge & Søn ILAB-ABF, Copenhagen, Dänemark
Erstausgabe
New York, American Telephone and Telegraph Company, 1933. Royal8vo. Original full blue cloth. Volume XI!, 1933 of "The Bell System Technical Journal". Library stamp to front free end-paper. Minor bumping to extremities. A nice and clean copy. Pp. 377-430. [Entire volume: 7, (1), 537 pp.]. First edition of Fletcher and Munson's important paper in which they proved that loudness not only varies in intensity but also in frequency. Fletcher is today widely regarded as the father of stereophonic sound.