The Encyclopedia Americana : the international reference work, volume 4
Americana Corporation, 1960
Buku Referensi
The Encyclopedia Americana : the international reference work, volume 6
Americana Corporation, 1960
Buku Referensi
The Encyclopedia Americana : the international reference work, volume 9
Americana Corporation, 1960
Buku Referensi
The Encyclopedia Americana : the international reference work, volume 11
Americana Corporation, 1960
Buku Referensi
The Encyclopedia Americana : the international reference work, volume 14
Americana Corporation, 1960
Buku Referensi