Communication from the Delegation of the German Democratic Republic: letter dated 4 May 1976 from the Chief of the Delegation of the German Democratic Republic addressed to the President of the Twenty-ninth World Health Assembly
引用
World Health Assembly, 29. (1976). Communication from the Delegation of the German Democratic Republic: letter dated 4 May 1976 from the Chief of the Delegation of the German Democratic Republic addressed to the President of the Twenty-ninth World Health Assembly. World Health Organization. https://iris.who.int/handle/10665/148729