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. — Vienna : International Atomic Energy Agency, 1968.
343 p. ; 24 cm. — (Proceedings series)
"STI/PUB/161.".