Manuel, F. E. (1965). Shapes of philosophical history. Allen & Unwin.
芝加哥风格引文Manuel, Frank Edward. Shapes of Philosophical History. Lond.: Allen & Unwin, 1965.
MLA引文Manuel, Frank Edward. Shapes of Philosophical History. Allen & Unwin, 1965.
警告：这些引文格式不一定是100％准确.