By William D. Lutz
By AITCHISON, Jean
By Sinclair, Barbara
By Barber, Charles
By Hirst
By Doff, Adrian, Jones, Christopher
By Waters, Mary
By Plag, Ingo
By Crystal, David
By Michael McCarthy, Felicity O'Dell, McCarthy, Michael, O'Dell, Felicity
By Hurford, James R.
By Smith, Jeremy J.
By Cambridge ESOL
By Christopher Foyle
By McCrum, Robert, Cran, WILLIAM, MacNeil, Robert
By Elmes, Simon
By McCrum, Robert
By Norman, Susan
By O'Connell, Sue, Sue O'Connell
By Cunningham, Sarah, Moor, Peter
By Kimbrough, Victoria, Palmer, M., Byrne, D.
By Higgins, M.
By J.R. Ewer, G. Latorre