MLA

Lewis, Ioan Myrddin. Ecstatic Religion : an Anthropological Study of Spirit Possession and Shamanism. Harmondsworth: Penguin books, 1975.

APA

Lewis, I. Myrddin. (1975). Ecstatic religion : an anthropological study of spirit possession and Shamanism. Harmondsworth: Penguin books.

Chicago

Lewis, Ioan Myrddin Ecstatic Religion: An Anthropological Study of Spirit Possession and Shamanism. Harmondsworth: Penguin books, 1975.