23977, U. N. C. Perspective. [S.l.] , [S.l.] : United Nations Chronicle.
芝加哥风格引文23977, United Nations Chronicle. Perspective. [S.l.] , [S.l.] : United Nations Chronicle.
MLA引文23977, United Nations Chronicle. Perspective. [S.l.] , [S.l.] : United Nations Chronicle.
警告：这些引文格式不一定是100％准确.