Isotopes in weed research / International Atomic Energy Agency, Proceedings of a symposium Vienna, 25-29 October 1965 jointly organized by the IAEA and FAO - Vienna: International Atomic Energy Agency, 1966 - 237p. Subjects--Topical Terms: Science Subjects--Index Terms: Chemistry Physics Universal Decimal Class. No.: 621.039.85:632.51(082.2) / K6