APA Style
WITTGENSTEIN, Ludwig. (1969).
On Certainty (First Published).
New York:
Harper Torchbooks.
Chicago Style
WITTGENSTEIN, Ludwig.
On Certainty.
First Published
New York:
Harper Torchbooks,
1969.
Text.
MLA Style
WITTGENSTEIN, Ludwig.
On Certainty.
First Published
New York:
Harper Torchbooks,
1969.
Text.
Turabian Style
WITTGENSTEIN, Ludwig.
On Certainty.
First Published
New York:
Harper Torchbooks,
1969.
Print.