@book{
  international1997iaea,
  title={Sewage Sludge and Wastewater for Use in Agriculture},
  series={TECDOC Series},
  number={971},
  year={1997},
  url={https://www.iaea.org/publications/5626/sewage-sludge-and-wastewater-for-use-in-agriculture},
  publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
  address={Vienna}
}