Lewis, Jordan D., author
Free Press, 1990
Buku Teks
Shepherd, Elizabeth J., 1960-, author
London, Facet
Buku Referensi
Shepherd, Ellizabeth, author
Facet, 2003
Buku Teks
Shepherd, Elizabeth, author
Facet Publishing, 2003
eBooks
Williams, Caroline, author
Chandos, 2006
Buku Teks