Harman, G. (1977). The nature of morality: An introduction to ethics. O.U.P..
Chicagoスタイル(17版)引用形式Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. New York: O.U.P., 1977.
MLA(9版)引用形式Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. O.U.P., 1977.
警告: この引用は必ずしも正確ではありません.