APA

Black M., . (1964). A companion to Wittgenstein's "Tractatus.". Ithaca, N.Y: Cornell University Press.

Chicago

Black Max, . 1964. A companion to Wittgenstein's "Tractatus.". Ithaca, N.Y: Cornell University Press.

Harvard

Black M., . (1964). A companion to Wittgenstein's "Tractatus.". Ithaca, N.Y: Cornell University Press.

MLA

Black Max, . A companion to Wittgenstein's "Tractatus.". Ithaca, N.Y: Cornell University Press. 1964.