The Clarendon Press, 1933
Buku Referensi
edited by Lesley Brown
Clarendon Press, 1993
Buku Referensi
Smith, William George, compiler
Clarendon Press, 1952
Buku Referensi
CHalker, Sylvia, author
Clarendon Press, 1994
Buku Referensi
Oxford university press , 1992
Buku Teks