Foster, George M., author
Brown and Comp, 1969
Buku Teks
Kroeber
Harcourt, Brace and Company, 1948
Buku Teks
Stocking, George W., author
The Free Pres, 1968
Buku Teks
Duke University Press, 1994
Buku Teks
Chambers, Erve, author
Waveland Press, 1989
Buku Teks