edited by Ralph Cohen
Johns Hopkins University Press, 1974
Buku Teks
Crane, R.S., author
University of Chicago Press, 1971
Buku Teks
Westland, Peter
English University, 1950.
Buku Teks
Duke University Press, 1995
Buku Teks
Bagehot, Walter
AMS Press, , 1973
Buku Teks