"The lecture by Sergei O. Prokofieff was originally published in German under the title Der Einweihungsweg Rudolf Steiners und das Geheimnis des Ich: Ein Beitrag zum Bologna-Vortrag Rudolf Steiners by Verlag am Goetheanum, Domach, 2011. The lecture by Rudolf Steiner (from the German GA volume 35) was previously published in Esoteric Development, SteinerBooks 1982"--Title page verso.
"Lecture by Sergei O. Prokofieff translated by Willoughby Ann Walshe with revisions by Thomas O'Keefe, and extensively revised by Simon Blaxland-de Lange. Lecture by Rudolf Steiner translated by Olin D. Wannamaker"--Title page verso.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Rudolf Steiner's Path of initiation and the mystery of the ego ; and The foundations of anthroposophical methodology : two lectures in Bologna: on 31 March 2011 during the International Conference to . ISBN 9781906999551. Published by Temple Lodge in 2013. Publication and catalogue information, links to buy online and reader comments.
