Smith, Shawn, author
Amacom, 2011
Buku Teks
ed. by Michael J. Kennish
CRC Press, 1994
Buku Referensi
edited by Maxine Melling; Joyce Little
Facet Publishing, 2004
Buku Teks
Kinnell, Margaret, author
Library Association Publishing, 2001
Buku Teks
Browne, M. Neil, author
Prentice-Hall, 2001
Buku Teks