Cita APA (7a ed.)

Pears, D. F. (1971). Wittgenstein. Fontana ; Collins.

Cita Chicago Style (17a ed.)

Pears, David Francis. Wittgenstein. London: Fontana ; Collins, 1971.

Cita MLA (9a ed.)

Pears, David Francis. Wittgenstein. Fontana ; Collins, 1971.