By Piero Rebora
By Universidad, De Alacala
By Nemeck, Francis Kelly, Coombs, Marie Theresa
By A.Bryson Gerrard
By DONALD ATTWATER
By William Smith (USDA Research Triangle Park North Carolina USA)
By Claire Tomalin, Tomalin, Claire
By A. S. Hornby, Jonathan Crowther
By Howard Jackson (Birmingham City University, UK)
By David Du Plessis
By Manuila, L., A., Lewalle, P., Nicoulin, M., Papo, T.
By Daniele Morvan, Professor Alain Rey
By Christine Maxwell, Julia Rowlandson
By Assaf, Beata
By Collins Dictionaries
By Professor Joel Krieger
By European Language Institute, Joy Olivier
By Bryson, Bill
By G. Berridge, L. Lloyd
By Tulloch, Colin, Richardson, John
By George A. Miller
By A. S. Hornby, A. P. Cowie