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Date: 2010-04-20 10:11:16Organic farming Sustainable agriculture Organic gardening Organic food Sustainable gardening Organic movement Walter James 4th Baron Northbourne Organic horticulture Ehrenfried Pfeiffer Agriculture Agroecology Sustainability | Add to Reading ListSource URL: orgprints.orgDownload Document from Source WebsiteFile Size: 337,79 KBShare Document on Facebook |
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