Basics
Imported print text
Translated into German by Hans-Ulrich Rieker. Zurich 1957. This translated into English by Elsy Becherer as The Yoga of Light. New York 1971, 1992; Los Angeles 1971, 1973, 1974, 1977; London 1989; Middletown, Cal. 1978
Imported raw data
840.1.7 Translated into German by Hans-Ulrich Rieker. Zurich 1957. This translated into English by Elsy Becherer as The Yoga of Light. New York 1971, 1992; Los Angeles 1971, 1973, 1974, 1977; London 1989; Middletown, Cal. 1978
References
Source refers to