Cita APA (7a ed.)

McGuinness, B. (1988). Wittgenstein, a life: Young Ludwig, 1889-1921. University of California Press.

Cita Chicago Style (17a ed.)

McGuinness, Brian. Wittgenstein, a Life: Young Ludwig, 1889-1921. Berkeley: University of California Press, 1988.

Cita MLA (9a ed.)

McGuinness, Brian. Wittgenstein, a Life: Young Ludwig, 1889-1921. University of California Press, 1988.