Shipps, Steve, author
Blackwell Publishing, 2008
Buku Teks
Chamberlin, Marry W., author
American Library Association, 1959
Buku Referensi
Rathbun, Mary Chalmers, author
Adison Galery American Art, 1954
Buku Teks
Jenkins, Keith, author
Routledge, 1996
Buku Teks
Nicholson, Robert, author
Robert Nicholson Pub., 1988
Buku Referensi