Raudive, Konstantins, 1909-1974. Breakthrough: an amazing experiment in electronic communication with the dead [electronic resource] / [by] Konstantin Raudive. Translated by Nadia Fowler. Edited by Joyce Morton. With a pref. by Peter Bander.. — New York, : Taplinger, [1971]. — xxxi, 391 p. 23 cm.
Translation of Unhörbares wird hörbar. Accompanied by phonodisc (2 s. 7 in. 33 1/3 rpm. microgroove); includes errata.