Ralph Metzner

A experiência psicodélica

Entheogene Psychotherapie

Seeking Your Loved One on the Other Side

L'esperienza psichedelica

The Psychedelic Experience

Eye of the Seeress / Voice of the Poet

Seeking Your Loved One on the Other Side (Unabridged)

Maps of Consciousness (Unabridged)

The Psychedelic Reader : Classic Selections from the Psychedelic Review, The Revolutionary 1960's Forum of Psychopharmacological Substances

Metamorphosis