APA Citation

Wittgenstein, L. (1971). Prototractatus: An early version of Tractatus logico-philosophicus. Routledge and K. Paul.

MLA Citation

Wittgenstein, Ludwig. Prototractatus: An Early Version of Tractatus Logico-philosophicus. Routledge and K. Paul, 1971.

Warning: These citations have been automatically generated and may not always be 100% accurate..