Clapham, C., & Corson, D. (1997). Encyclopedia of language and education: Language testing and assessment. Kluwer Academic Publishers.
Citazione stile Chigago Style (17a edizione)Clapham, Caroline, e David Corson. Encyclopedia of Language and Education: Language Testing and Assessment. Dordrecht: Kluwer Academic Publishers, 1997.
Citatione MLA (9a ed.)Clapham, Caroline, e David Corson. Encyclopedia of Language and Education: Language Testing and Assessment. Kluwer Academic Publishers, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.