Wilson, Edmund, 1895-1972, author
Penguin Books, 1993
Buku Teks
Wilson, Edmund, 1895-1972, author
Charles Scribner's Sons, 1953
Koleksi Publik
Williams, Harold Herbert, author
Sidgwick & Jackson, 1918
Buku Teks
Robert M. Hutchins, Mortimer J. Adler, editors in chief
Encyclopaedia Britannica, Inc., 1963
Buku Referensi
Robert M. Hutchins, Mortimer J. Adler, editors in chief
Encyclopaedia Britannica, Inc., 1963
Buku Referensi