@book{
      international2006iaea,
      title={Management Practices for Improving Sustainable Crop Production in Tropical Acid Soils},
      author={ },
      series={entity},
      number={ },
      year={2006},
      isbn={92-0-115206-X },
      url={/publications/7603/management-practices-for-improving-sustainable-crop-production-in-tropical-acid-soils },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }