Osborne, Harold
London Routledge & Kegan Paul 1955
Buku Teks
Luhr, William, author
Putnam, 1977
Buku Teks
edited by Susan L. Feagin and Patrick Mayhard
Oxford University Press, 1997
Buku Teks
Kiernan, Brian, author
Oxford University Press, 1974
Buku Teks
Berenson, Bernard, 1865-1959, author
Doubleday Anchor Books, 1953
Buku Teks