The Encyclopedia Americana : volume 25
Americana Corporation, 1977
Buku Referensi
The Encyclopedia Americana : volume 25
Americana Corporation, 1964
Buku Referensi
The Encyclopedia Americana : the international reference work, volume 25
Americana Corporation, 1960
Buku Referensi
Encyclopaedia universalis : volume 25
Encyclopaedia Universalis France S.A. , 1989
Buku Referensi
The encyclopedia American
Americana Corporation, 1980
Buku Referensi