Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.168, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.50, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “The Water Wizard – The Extraordinary Properties of Natural Water: Volume 1 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.22, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.149, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “The Water Wizard – The Extraordinary Properties of Natural Water: Volume 1 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.27, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.18, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “Nature as Teacher – New Principles in the Working of Nature: Volume 2 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.17, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.149, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “The Water Wizard – The Extraordinary Properties of Natural Water: Volume 1 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.19, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.18, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “The Water Wizard – The Extraordinary Properties of Natural Water: Volume 1 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.9, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.149, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “Nature as Teacher – New Principles in the Working of Nature: Volume 2 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.23, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.15, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.15, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (1999). “The Water Wizard – The Extraordinary Properties of Natural Water: Volume 1 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.95, Gill & Macmillan Ltd
Viktor Schauberger, Callum Coats (2000). “The Energy Evolution – Harnessing Free Energy from Nature: Volume 4 of Renowned Environmentalist Viktor Schauberger’s Eco-Technology Series”, p.182, Gill & Macmillan Ltd