TY - BOOK ED - Population Council. ED - United Nations. TI - World leaders declaration on population: presented at the United Nations on Human Rights Day, December 1967 PY - 1967/// CY - New York PB - Population Council KW - Population KW - Birth control N1 - Statement by Secretary General U Thant. -- Statement of the Colombia n Ambassador to the United Nations, Dr. Julio Cesar Turbay-Ayala. --Sta tement of the British Ambassador to the United Nations, Lord Caradon. - -Statement on population by world leaders [signed by 30 heads of govern ments] ER -