Allaby, Michael, editor
Oxford University Press, 1992
Buku Referensi
edited by Michael Allaby
Oxford University Press, 1992
Buku Teks
Mayhew, Susan, author
Oxford University Press, 1992
Buku Referensi
Russian-English, edited by Marcus Wheeler and Boris Unbegaun; English-Russian, edited by Paul Falla; revised and updated by Della Thompson
Oxford University Press, 2007
Buku Referensi
edited by Angela Partington
Oxford University Press, 1993
Buku Referensi