edited by Michael Allaby
Oxford University Press, 1992
Buku Teks
edited by Angela Partington
Oxford University Press, 1993
Buku Referensi
Oxford University Press, 1996
Buku Referensi
edited by Michael Allaby
Oxford University Press, 1994
Buku Referensi
Warrack, John, author
Oxford University Press, 1996
Buku Referensi