Cita APA (7a ed.)

Wittgenstein, L., Klagge, J. C., & Nordmann, A. (1993). Philosophical occasions, 1912-1951. Hackett.

Cita Chicago Style (17a ed.)

Wittgenstein, Ludwig, James Carl Klagge, y Alfred Nordmann. Philosophical Occasions, 1912-1951. Indianapolis [etc.]: Hackett, 1993.

Cita MLA (9a ed.)

Wittgenstein, Ludwig, et al. Philosophical Occasions, 1912-1951. Hackett, 1993.