Frederick A, Praeger; George Allen and Unwin Ltd., 1964
Buku Teks
Gallagher, Matthew P., author
Frederick A. Preager, 1963
Buku Teks
Carr, Edward Hallet, author
Macmillan, 1954
Buku Teks
Fischer, Louis, author
Princeton University Press, 1951
Buku Teks
Lamont, Corliss, author
Philosophical Library, 1952
Buku Teks