Encyclopedia Americana Volume 16, Penerbit Grolier
Encyclopedia Americana Volume 14, Penerbit Grolier
Encyclopedia Americana Volume 11, Penerbit Grolier
Encyclopedia Americana Volume 7, Penerbit Grolier
Encyclopedia Americana Volume 30, Penerbit Grolier
Encyclopedia Americana Volume 1, Penerbit Grolier
Encyclopedia Americana Volume 26, Penerbit Grolier
Encyclopedia Americana Volume 13, Penerbit Grolier
Encyclopedi Americana Volume 9, Penerbit Grolier