Gaya APA
Wittgenstein, L.
(1922).
Tractatus Logico-Philosophicus
(
1)
.
London:
Routledge & Kegan Paul Books.
Gaya MLA
Wittgenstein, Ludwig.
"Tractatus Logico-Philosophicus".
1
London:
Routledge & Kegan Paul Books,
1922.
Text.