Book Section

Luke, David ORCID: https://orcid.org/0000-0003-2141-2453 (2012) Notes on getting cactus lodged in your reducing valve: San Pedro and psychic abilities. In: Heaven, Ross, (ed.) Cactus of mystery: The shamanic powers of the Peruvian San Pedro cactus. Park Street Press, Rochester, Vermont, USA, pp. 167-195. ISBN 9781594774911

Luke, David ORCID: https://orcid.org/0000-0003-2141-2453 (2009) Cleansing the doors of perception. In: Heaven, Ross, (ed.) The hummingbird’s journey to God: Perspectives on San Pedro, the cactus of vision. O Books, Poole, Dorset, UK, pp. 1-7. ISBN 9781846942426