Crowley, M., & Shulgin, A. (2019). Secret drugs of Buddhism: Psychedelic sacraments and the origins of the Vajrayana (2. edition.). Synergetic Press.
Chicago Style (17th ed.) CitationCrowley, Mike, and Ann Shulgin. Secret Drugs of Buddhism: Psychedelic Sacraments and the Origins of the Vajrayana. 2. edition. Santa Fe London: Synergetic Press, 2019.
MLA (8th ed.) CitationCrowley, Mike, and Ann Shulgin. Secret Drugs of Buddhism: Psychedelic Sacraments and the Origins of the Vajrayana. 2. edition. Synergetic Press, 2019.
Warning: These citations may not always be 100% accurate.