LSD: Doorway to the Numinous The Groundbreaking Psychedelic Research into Realms of the Human Unconscious Grof Stanislav Heftet / 2009 / Engelsk
Realms of the Human Unconscious Observations from LSD Research Grof Stanislav Heftet / 2021 / Engelsk
Beyond the Brain Birth, Death, and Transcendence in Psychotherapy Grof Stanislav Innbundet / 1985 / Engelsk
Adventure of Self-Discovery Dimensions of Consciousness and New Perspectives in Psychotherapy and Inner Exploration Grof Stanislav Heftet / 1988 / Engelsk
Psychology of the Future Lessons from Modern Consciousness Research Grof Stanislav Heftet / 2000 / Engelsk
Psychology of the Future Lessons from Modern Consciousness Research Grof Stanislav Innbundet / 2000 / Engelsk
El juego cósmico Exploraciones En Las Fronteras de la Conciencia Humana Grof Stanislav Heftet / 2009 / Spansk
Holotropic Breathwork A New Approach to Self-Exploration and Therapy Grof Stanislav Heftet / 2023 / Engelsk
Viaggio dell'Eroe Un manuale pratico che guida passo dopo passo alla conquista della Via Eroica nella vita quotidiana Kay, Melissa Heftet / 2018 / Italiensk
Toad and the Jaguar a Field Report of Underground Research on a Visionary Medicine Bufo Alvarius and 5-Methoxy-Dimethyltryptamine Metzner, Ralph Heftet / 2013 / Engelsk
Toad and the Jaguar a Field Report of Underground Research on a Visionary Medicine Bufo Alvarius and 5-Methoxy-Dimethyltryptamine Metzner Ralph Innbundet / 2013 / Engelsk
