Australai : The Hawthorne Press
Majalah, Jurnal, Buletin
Griswold, Alfred Whitney, 1906-1963, author
Brace, 1939
Buku Teks
Hartford : Conference on British Studies
Majalah, Jurnal, Buletin
New York: M.E Sharpe
Majalah, Jurnal, Buletin
Clyde, Paul H. (Paul Hibbert), author
Prentice-Hall, 1948
Buku Teks