MLA

Lewis, Ioan Myrddin. Ecstatic Religion : an Anthropological Study of Spirit Possession and Shamanism. [Harmondsworth, Eng.]: Penguin Books, 1971.

APA

Lewis, I. Myrddin. (1971). Ecstatic religion : an anthropological study of spirit possession and shamanism. [Harmondsworth, Eng.]: Penguin Books.

Chicago

Lewis, Ioan Myrddin, Ecstatic Religion: An Anthropological Study of Spirit Possession and Shamanism. [Harmondsworth, Eng.]: Penguin Books, 1971.