Quirk, R., & Widdowson, H. G. (1985). English in the world: Teaching and learning the language and literatures. Cambridge : Cambridge Univ Pr.
Citazione stile Chigago Style (17a edizione)Quirk, Randolph, e H. G. Widdowson. English in the World: Teaching and Learning the Language and Literatures. Cambridge : Cambridge Univ Pr, 1985.
Citatione MLA (9a ed.)Quirk, Randolph, e H. G. Widdowson. English in the World: Teaching and Learning the Language and Literatures. Cambridge : Cambridge Univ Pr, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.