199989 Sauvy, A. (1974). General theory of population. London : Methuen.
芝加哥风格引文199989 Sauvy, Alfred. General Theory of Population. London : Methuen, 1974.
MLA引文199989 Sauvy, Alfred. General Theory of Population. London : Methuen, 1974.
警告：这些引文格式不一定是100％准确.