Dallin, Leon
WM. C. Brown Co. Pub., 1965
Buku Teks
Drotning, Phillip T.
Doubleday, 1968
Buku Teks
Clark, William S.
Houghton-Miffiln, 1987
Buku Teks
Robins, C. Richard
Houghton-Miffiln, 1986
Buku Teks
Cassara, Ernestt
Gale Research Coompany, 1977
Buku Teks