edited by Leonard D. White
University of Chicago Press, 1945
Buku Teks
Chapman, Richard A.
Constable, 1970
Buku Teks
Dupre, Flint O
Harper & Row, 1967
Buku Teks
editor, Andrew Massey
Edwar Elgar, 2011
Buku Teks
R. A. W. Rhodes [and others]
Open University press, 2003
Buku Teks