By Schmidt, Jean-Jacques
By Macleod, Iseabail, etc.
By Lingo Mastery
By HUGO\'S LANGUAGE BOOKS
By Bayram, Ali
By King, Peter, Margaretha
By Herckenrath, C.R.C., Dory, A.
By Malka, Victor, Joss, J.
By Garcia-Pelayo y Gross, Ramon
By Wolters, GRONINGEN
By Sasse, H.C., etc.
By Tiwari, Uday Narayan
By Allen
By Hugo's Language Books, Hugo's Language Books, Hugo's Language Books
By Alapi, Krisztina
By Susana Wald
By Malory, Sir Thomas, Brewer, Derek
By Longman
By Chambers
By Bill Bryson
By Anderson, Beatrix, North, Maurice, collectif
By Listed, NO AUTHOR
By Harrap
By Clark, M., Thyen, O., Thyan, Olaf