Citace podle APA (7th ed.)

WITTGENSTEIN, L. (1969). The Blue and brown books: Preliminary studies for the 'philosophical Investigations (2nd ed.). Blackwell.

Citace podle Chicago (17th ed.)

WITTGENSTEIN, Ludwig. The Blue and Brown Books: Preliminary Studies for the 'Philosophical Investigations. 2nd ed. Oxford: Blackwell, 1969.

Citace podle MLA (9th ed.)

WITTGENSTEIN, Ludwig. The Blue and Brown Books: Preliminary Studies for the 'Philosophical Investigations. 2nd ed. Blackwell, 1969.

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