Westergaard, H. L. (1968). Contributions to the history of statistics. Agathon Press.
芝加哥风格引文Westergaard, Harald Ludvig. Contributions to the History of Statistics. New York: Agathon Press, 1968.
MLA引文Westergaard, Harald Ludvig. Contributions to the History of Statistics. Agathon Press, 1968.
警告：这些引文格式不一定是100％准确.