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I-85 3	Isotopes and Radiation in Soil-Plant Nutrition Studies [Текст] : proc. of the Symp. on the Use of Isotopes a. Radiation in Soil-Plant Nutrition Studies jointly organized by the IAEA a. the FAO of the UN a. held in Ankara, 28 June - 2 July 1965. — Vienna : Intern. Atomic Energy Agency, 1965. — 609 p.