Gardiner, Peter D.R., author
Charles Scribner's Sons, 1971
Buku Teks
edited by Alexander R. Cuthbert
Blackwell, 2003
Buku Teks
Booth, Wayne C., author
Harper & Row, 1987
Buku Teks
Wallace, Catherine, author
1992
Buku Teks
Wallace, Catherine, author
Oxford University Press, 1993
Buku Teks