Philosophical Investigations was created in 1953.
Philosophical Investigations - journal - was created in 1978.
read Wittgenstein, Philosophical Investigations
Griffin Investigations was created in 1967.
Philosophical Writings was created in 1996.
Philosophical Issues was created in 1991.
A Philosophical Investigation was created in 1992.
Philosophical Perspectives was created in 1987.
Philosophical Hall was created in 1789.
Philosophical Frontiers was created in 2006.
The Philosophical Forum was created in 1943.
Philosophical Notebooks was created in 1918.
Philosophical Papers was created in 1986.