Preliminary studies for the "Philosophical investigations", generally known as the Blue and Brown books
Contributors: Wittgenstein, Ludwig, 1889-1951
Edition: [2d ed.].
Series: Harper torchbooks -- TB1211H; Harper torchbooks -- TB1211H.
Publisher: Harper & Row
Published: 1965
Place of publication: New York
Language: eng
Number of pages: 185
Other titles: The Blue and Brown books.