Friedrichs, K. O. (1965). From Pythagoras to Einstein. Mathematical Association of America.
芝加哥风格引文Friedrichs, K. O. From Pythagoras to Einstein. Washington, D.C.: Mathematical Association of America, 1965.
MLA引文Friedrichs, K. O. From Pythagoras to Einstein. Mathematical Association of America, 1965.
警告：这些引文格式不一定是100％准确.