Ray Wolf
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Gardener's Solar Greenhouse: How to Build and Use a Solar Greenhouse for Year-Round Gardening
Wolf, Ray
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View 8 offersUS$ 4.98
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Solar Food Dryer: Preserves Food for Year-Round Use, Using Solar Energy
Ray Wolf
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View 6 offersUS$ 4.74
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Organic farming: Yesterday's and tomorrow's agriculture
Wolf, Ray
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View 12 offersUS$ 7.59
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Solar air heater: Mounts on any sunny wall, turning solar energy into free heat for your home (Rodale plans)
Ray Wolf
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View 2 offersUS$ 12.04
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Insulating Window Shade: Reduces Heat Loss Through Windows by 80%
Wolf, Ray
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View 2 offersUS$ 10.48
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Home soyfood equipment: For production and use of high-protein, low-calorie tofu, tempeh, and soymilk (Rodale plans)
Wolf, Ray
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View 7 offersUS$ 10.00
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Solar gardening shed: Combines a greenhouse, equipment shed, and solar firewood dryer in one building (Rodale plans)
Ray Wolf
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View 2 offersUS$ 30.00
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