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Date: 2013-07-05 16:26:18Environment Sustainable agriculture Organic farming Organic gardening Organic food Stone Barns Center for Food & Agriculture Whiterock Conservancy Sustainability Agriculture Agroecology | Microsoft Word - Fred_long_for_web.docAdd to Reading ListSource URL: www.leopold.iastate.eduDownload Document from Source WebsiteFile Size: 18,12 KBShare Document on Facebook |