@book{
      international1973iaea,
      title={Environmental Isotope Data No. 4: World Survey of Isotope Concentration in Precipitation (1968–1969)},
      author={ },
      series={entity},
      number={147 },
      year={1973},
      isbn={92-0-145173-3 },
      url={/publications/1248/environmental-isotope-data-no-4-world-survey-of-isotope-concentration-in-precipitation-1968-1969 },
      publisher={INTERNATIONAL ATOMIC ENERGY AGENCY },
      address={Vienna}
    }