Cita APA (7a ed.)

Wittgenstein, L., Zamuner, E., Di Lascio, E. V., Levy, D., & Somavilla, I. (2007). Lecture on ethics. Quodlibet.

Cita Chicago Style (17a ed.)

Wittgenstein, Ludwig, Edoardo Zamuner, Ermelinda Valentina Di Lascio, David Levy, y Ilse Somavilla. Lecture on Ethics. Macerata: Quodlibet, 2007.

Cita MLA (9a ed.)

Wittgenstein, Ludwig, et al. Lecture on Ethics. Quodlibet, 2007.