Ahead Books(1) Andrew Betsis Elt(6) Archer Editions(7) Burlington Books(35) Cambridge Pen(1) Cambridge University(61) Cengage Learning(7) ELI(2) Express Publishing(67) Grivas Publications(8) Hamilton House(15) HarperCollins Publishers(1) Helbling Publishing(5) Hillside Press(13) Houghton Mifflin(3) Lisari(1) Litera(6) Macmillan Publishers(8) MM Publications(27) National Geographic(2) New Editions(19) Oxford University Press(4) Palso ΠΟΙΚΞΓ(1) Pearson(48) SuperCourse ELT(13) Sylvia Kar Publications(3) York Press(1) Ελληνοαμερικανική Ένωση(5) Ιδιωτική Έκδοση(2)