APA Style

Wittgenstein, Ludwig. (1960). The blue and brown books . New York: Harper Torchbooks.

Chicago Style

Wittgenstein, Ludwig. The blue and brown books. New York: Harper Torchbooks, 1960. Text.

MLA Style

Wittgenstein, Ludwig. The blue and brown books. New York: Harper Torchbooks, 1960. Text.

Turabian Style

Wittgenstein, Ludwig. The blue and brown books. New York: Harper Torchbooks, 1960. Print.