By Downes, WILLIAM
By Giglioli, Pier
By Milroy
By Milroy, Lesley
By Clark, Virginia P., Eschholz, Paul A., Rosa, Alfred F.
By Wolfram, Walt
By Lippi-Green, Rosina
By Bonvillain, Nancy
By Wardhaugh, Ronald
By Saville-Troike, Muriel
By Coulmas, Florian
By Wardhaugh
By Saunders, Jean
By Crystal, David
By Ross, Corinne
By Unknown
By Barlow, Geneviève, Stivers, WILLIAM, Genevieve Barlow, William Stivers
By Sellers, Susan
By Faulkner, R.O.
By Caesar, Julius, Ewan, Colin, C.
By Langenscheidt Editorial
By DK
By Beecroft, Simon
By Howe, Ian
By LETTS EDUCATIONAL
By John J. Nitti, Michael J. Ferreira
By Katia Brillié Lutz, Conrad J. Schmitt
By -