APA (7th ed.) Citation

Wittgenstein, L., Russell, B., & Terricabras, J. M. (1989). Tractatus logico-philosophicus (2a ed.). Laia.

Chicago Style (17th ed.) Citation

Wittgenstein, Ludwig, Bertrand Russell, and Josep Maria Terricabras. Tractatus Logico-philosophicus. 2a ed. Barcelona: Laia, 1989.

MLA (9th ed.) Citation

Wittgenstein, Ludwig, et al. Tractatus Logico-philosophicus. 2a ed. Laia, 1989.