APA (7th ed.) Citation

Wittgenstein, L. (1969). Sobre la certeza. Gedisa.

Chicago Style (17th ed.) Citation

Wittgenstein, Ludwig. Sobre La Certeza. Barcelona: Gedisa, 1969.

MLA (9th ed.) Citation

Wittgenstein, Ludwig. Sobre La Certeza. Gedisa, 1969.

Warning: These citations may not always be 100% accurate.