Wolf, Thomas
A fireside Book, 1990
Buku Teks
Shepherd, Ellizabeth
Facet, 2003
Buku Teks
Williams, Caroline
Chandos, 2006
Buku Teks SO
Shepherd, Elizabeth J., 1960-
London, Facet
Buku Referensi
Shepherd, Elizabeth J., 1960-
Facet Publishing, 2003
Buku Referensi