Cohen, L. W., & Ehrlich, G. (1963). The structure of the real number system. Van Nostrand.
芝加哥风格引文Cohen, Leon W., 与 Gertrude Ehrlich. The Structure of the Real Number System. Princeton, N.J.: Van Nostrand, 1963.
MLA引文Cohen, Leon W., 与 Gertrude Ehrlich. The Structure of the Real Number System. Van Nostrand, 1963.
警告：这些引文格式不一定是100％准确.