Explore your psychic world
Oursler, Will.
Worrall, Ambrose A.
Worrall, Olga Nathalie.
New York London Harper and Row
1976
'... based on a series of six seminars on spiritual healing conducted by Olga and Ambrose Worrall in the fall and winter of 1967-68' - Preface
Originally published: New York : Harper and Row, 1970
Parapsychology.