Reichenbach, Hans, author
University of California Press, 1968
Buku Teks
edited by Ernst Cassirer; Paul Oskar Kristeller; John Herman Randall
University of Chicago Press, 1948
Buku Teks
Gordon, W. Terrence, author
Writer and Readers Pubishing, 1996
Buku Teks
Paine, Thomas, author
Thomas Paine Foundation, 1950
Buku Teks
Kenny, Anthony
Oxford University Press, 2008
Buku Teks