Lewis, I. M. (1971). Ecstatic religion: An anthropological study of spirit possession and shamanism / I. M. Lewis (1st publ.). Penguin Books.
Chicago-referens (17:e uppl.)Lewis, Ioan Myrddin. Ecstatic Religion: An Anthropological Study of Spirit Possession and Shamanism / I. M. Lewis. 1st publ. Harmondsworth: Penguin Books, 1971.
MLA-referens (8:e uppl.)Lewis, Ioan Myrddin. Ecstatic Religion: An Anthropological Study of Spirit Possession and Shamanism / I. M. Lewis. 1st publ. Penguin Books, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.