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Appropriate Technology Published by: London, Intermediate Technology Publications Ltd. (United Kingdom (Great Britain)) Subject: Agriculture - Agricultural Economics Language: English Published: 1974 ISSN: 0305-0920 Available at 15 Universities. | |||
Scientific American Published by: Nature Publishing Group (United States of America) Subject: Sciences: Comprehensive Works Language: English ISSN: 0036-8733, 1946-7087 Available at 116 Universities. |