By Ragazzini, Giuseppe, Biagi, Adele
By Watson, O.C.
By Frisby, A. W.
By Anon`
By Godman, A
By Procter, P
By Procter, Paul
By Roget, Peter, Lloyd, Susan M.
By Longman
By Alexander, L. G., Clopeau, Judith, Le Cunff-Renouard, Madeleine
By Pearson Education
By Summers, Della, collectif
By Proctor, Paul
By Unknown
By Unnamed
By Roget, Peter Mark, Lloyd, Susan M.
By Roget, Peter Mark, Kirkpatrick, E.M., Peter Mark Roget
By Various Authors
By John Bartholomew
By Collins
By Anon
By Ginny Lapage
By Jeremy Howard-Williams
By Parkinson, Roger