Blondel, Maurice., 1861-1949
Press University de France, 1950
Buku Teks
Seeley, John Robert, author
JM Dent & Sons, 1932
Buku Teks
Teilhard de Chardin, Pierre, author
Collins, 1978
Buku Teks
Niebuhr, Reinhold, author
Nisbet, 1947
Buku Teks
Batiffol, Henri
Dalloz, 1956
Buku Teks