Cita APA (7a ed.)

Black, M. (1964). A Companion to Wittgenstein's Tractatus. Cambridge University.

Cita Chicago Style (17a ed.)

Black, Max. A Companion to Wittgenstein's Tractatus. Cambridge: Cambridge University, 1964.

Cita MLA (9a ed.)

Black, Max. A Companion to Wittgenstein's Tractatus. Cambridge University, 1964.