http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Studies on sulphur isotope variations in nature
Advisory group meeting on the hydrology and geochemistry of sulphur isotopes Viena,AT 1985
ISOTOPOS RADIACTIVOS -APLICACIONES [HIDROLOGIA] -CONGRESOS