Allen, R. E. (1991). Greek philosophy: Thales to Aristotle. Free Press.
Chicagoスタイル(17版)引用形式Allen, Reginald E. Greek Philosophy: Thales to Aristotle. New York: Free Press, 1991.
MLA(9版)引用形式Allen, Reginald E. Greek Philosophy: Thales to Aristotle. Free Press, 1991.
警告: この引用は必ずしも正確ではありません.