edited by Ian McNeil
Routledge, 1990
Buku Referensi
Glass, Jacqueline, author
Wiley-Academy, 2002
Buku Referensi
Claus, Volker, author
Ellis Horwood, 1992
Buku Referensi
edited by Charles Singer ... [and others]
Clarendon Press, 1954-85
Buku Teks
edited by, Ian Inkster
Bloomsbury Publishing, 2012
Buku Teks