Jones, L. (1991). Progress to proficiency: Teacher's book. Cambridge: Cambridge University Press.
Chicago ZitierstilJones, Leo. Progress to Proficiency: Teacher's Book. Cambridge: Cambridge University Press, 1991.
MLA ZitierstilJones, Leo. Progress to Proficiency: Teacher's Book. Cambridge: Cambridge University Press, 1991.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.