Open University, ebrary, Inc, & Swarbrick, A. (1994). Teaching modern languages. Routledge.
Citazione stile Chigago Style (17a edizione)Open University, Inc ebrary, e Ann Swarbrick. Teaching Modern Languages. New York: Routledge, 1994.
Citatione MLA (9a ed.)Open University, et al. Teaching Modern Languages. Routledge, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.