Isotope studies on the nitrogen chain. Proceedings of the symposium ... jointly organized by the International Atomic Energy Agency and the Food and Agriculture Organization of the United Nations in co-operation with the Joint Commission of Applied Radioactivity (ICSU) and held in Vienna, 28 August-1 September 1967. [Illustrated]. (Proceedings series)
Isotope studies on the nitrogen chain. Proceedings of the symposium ... jointly organized by the International Atomic Energy Agency and the Food and Agriculture Organization of the United Nations in co-operation with the Joint Commission of Applied Radioactivity (ICSU) and held in Vienna, 28 August-1 September 1967. [Illustrated].