Hornby, Albert Sydney, author
Oxford University Press,
Buku Referensi
Oxford University Press, 1998
Buku Referensi
Oxford University Press, 1997
Buku Referensi
edited by N. S. Doniach
Clarendon Press; Oxford University Press, 1972
Buku Referensi
Crawley, Angela, author
Oxford University Press, 2000
Buku Referensi