Singer, P. (1993). Practical ethics (2nd ed.). Cambridge University Press.
Chicagoスタイル(17版)引用形式Singer, Peter. Practical Ethics. 2nd ed. Cambridge: Cambridge University Press, 1993.
MLA(9版)引用形式Singer, Peter. Practical Ethics. 2nd ed. Cambridge University Press, 1993.
警告: この引用は必ずしも正確ではありません.