TY - BOOK ED - International Symposium on Isotope Techniques in Water Resources Development (1991 : Vienna). ED - International Atomic Energy Agency. TI - Isotope techniques in water resources development 1991: proceedings of an international ... development SN - 9200001920 PY - 1991/// CY - Vienna PB - International Atomic Energy Agency KW - Radioactive tracers in water pollution research KW - Water resources development KW - Environmental aspects KW - Water, Underground KW - Pollution ER -