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Committee on the Role of Alternative Farming Methods in Modern Production Agriculture, National Research Council. 1989. [http://www.nap.edu/catalog.php?record_id=1208 Alternative Agriculture]. National Academies Press.
Howard, Sir Albert. 1943. An Agricultural Testament. Oxford, UK: Oxford University Press.
Rodale, Robert. 2010. Organic Gardening. Emmaus, PA: Rodale Press.
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Lampkin & Padel. 1994. The Economics of Organic Farming: An International Perspective. Guildford: CAB International. ISBN 0-85198-911-X
Solomon, Steve. Sir Albert Howard's Indore Method. Organic Gardener's Composting. Soil And Health Library. http://www.soilandhealth.org/03sov/0302hsted/030202/03020209.html. Retrieved 2008-06-20.
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