ラルフ・メツナー
Metzner, Ralph (2009). Alchemical Divination (paperback ed.). Berkeley, CA: Green Earth Foundation & Regent Press. ISBN 978-1-58790-162-1
Metzner, Ralph (2008). The Roots of War and Domination (paperback ed.). Berkeley, CA: Green Earth Foundation & Regent Press. ISBN 978-1-58790-150-8
Metzner, Ralph (2008). The Expansion of Consciousness (paperback ed.). Berkeley, CA: Green Earth Foundation & Regent Press. ISBN 978-1-58790-147-8
Sacred Vine of Spirits: Ayahuasca (paperback ed.). Rochester, VT: Park Street Press. (2006). ISBN 1-59477-053-0
Sacred Mushroom of Visions: Teonanacatl (paperback ed.