Blumenfeld, Martin
Burgess, 1977
Buku Teks
Martin, Gary J.
Chapman and Hall, 1995
Buku Teks
Cox, George W., author
Wm. C. Brown, 1996
Buku Teks
Stetler, David A.
"Minneapolis Burgess, 1974",
Buku Teks
Shellhammer, H. S., author
The National Press, 1965
Buku Teks