Euler, L. (1975). Letters of Euler on different subjects in natural philosophy. Arno Press.
芝加哥风格引文Euler, Leonhard. Letters of Euler on Different Subjects in Natural Philosophy. New York: Arno Press, 1975.
MLA引文Euler, Leonhard. Letters of Euler on Different Subjects in Natural Philosophy. Arno Press, 1975.
警告：这些引文格式不一定是100％准确.