Shattuck, John H. F., author
Harvard University Press, 2003
Buku Teks
Perkins,Dexter
Little, Brown and Company, 1944
Buku Teks
edited by Fredrick B. Pike
University of Notre Dame Press, 1959
Buku Teks
edited by Norman A. Graebner
Penn State University Press, 1977
Buku Teks
Shannon, David A.
Houghton Miffiln, 1979
Buku Teks