Traditions › Stregheria › Sources Tradition · Stregheria Sources Overview Origins Beliefs Symbols Figures Controversies Sources Sources Charles Godfrey Leland. Aradia, or the Gospel of the Witches David Nutt , 1899 Raven Grimassi. Ways of the Strega Llewellyn , 1995 Raven Grimassi. Stregheria: The Old Religion of Southern Europe Llewellyn , 2000 Sabina Magliocco. Witching Culture: Folklore and Neo-Paganism in America University of Pennsylvania Press , 2004 Previous Controversies