1. Havard, V. 1885. Proceedings of the United States National Museum, Vol.VIII, p. 507.
2. La Barre, W. 1938. The Peyote Cult. Yale University Publications in Anthropology, Number 19.
3. —. 1969. The Peyote Cult. Enlarged Edition with new preface and additions. Schocken Paperbacks, New York.
4. Mikolajczak, K. L, C. R. Smith, and L. W. Tjarks. 1971. Cyanolipids of Cardiospermum halicacabum L. and Other Sapindaceous Seed Oils. Lipids, Vol. 5, Number 10, pp. 812–817.
5. Schultes, R. E. 1963. Hallucinogenic Plants of the New World. Harvard Review, Number 1, pp. 25–26.