Hashemi, L. (2003). Objective PET: Student's book. Cambridge, UK: Cambridge University Press.
Trích dẫn kiểu ChicagoHashemi, Louise. Objective PET: Student's Book. Cambridge, UK: Cambridge University Press, 2003.
ציטוט MLAHashemi, Louise. Objective PET: Student's Book. Cambridge, UK: Cambridge University Press, 2003.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.