Quirk, R., & Widdowson, H. G. (1985). English in the world: Teaching and learning the language and literatures. Cambridge : Cambridge Univ Pr.
Čikaški stil citiranja (17. izdanje)Quirk, Randolph, i H. G. Widdowson. English in the World: Teaching and Learning the Language and Literatures. Cambridge : Cambridge Univ Pr, 1985.
MLA način citiranja (9. izdanje)Quirk, Randolph, i H. G. Widdowson. English in the World: Teaching and Learning the Language and Literatures. Cambridge : Cambridge Univ Pr, 1985.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.