Great books of the western world
Chicago, Encyclopedia Britanica, Inc,, 1996
 Buku Referensi
Great books of the western world
Adler, Mortimer J.,, editor in chief
Chicago, Encyclopedia Britanica, Inc, , 1995
 Buku Referensi
Great books of the western world
editor in chief, Mortimer J. Adler
Encyclopedia Britanica, 1990
 Buku Referensi
Great books of the western world
Adler, Mortimer J., 1902-2001 (change)
Chicago, Encyclopedia Britanica, Inc, 1990,
 Buku Referensi
Great books of the western world
Adler, Mortimer J., 1902-2001 (change)
Chicago, Encyclopedia Britanica, Inc, 1990,
 Buku Referensi