(2001). Test of English as a foreign landguage: TOEFL. Educational Testing Service.
Citazione stile Chigago Style (17a edizione)Test of English as a Foreign Landguage: TOEFL. NewYork: Educational Testing Service, 2001.
Citatione MLA (9a ed.)Test of English as a Foreign Landguage: TOEFL. Educational Testing Service, 2001.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.