Citazione APA

Schopenhauer, A., Cartwright, D. E., & Erdmann, E. E. (2010). The two fundamental problems of ethics. Oxford University Press.

Stile di citazione Chicago

Schopenhauer, Arthur, David E. Cartwright, e Edward E. Erdmann. The Two Fundamental Problems of Ethics. Oxford: Oxford University Press, 2010.

Citazione MLA

Schopenhauer, Arthur, et al. The Two Fundamental Problems of Ethics. Oxford University Press, 2010.