The Encyclopedia Americana : the international reference work, volume 3
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 12
Americana Corporation, 1960
Buku Referensi
The Encyclopedia Americana : the international reference work, volume 15
Americana Corporation, 1960
Buku Referensi