Eccleston, Richard
Edward Elgar, 2007
Buku Teks
Millis, Walter
William Morrow & Company, 1947
Buku Teks
Treat, Payson J., author
Peter Smith, 1963
Buku Teks
Farnsworth, E. Allan, author
Oceana Publication, 1983
Buku Teks
Born, Gary B., author
Kluwer law and Taxation Publishers, 1994
Buku Teks