Campbell, C., & Colin Campbell; Kathy Gude; JaMichael Duckworth. (2002). Matrix: Pre-Intermediate (Teacher's book). Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoCampbell, Colin, và Colin Campbell; Kathy Gude; JaMichael Duckworth. Matrix: Pre-Intermediate (Teacher's Book). Oxford: Oxford University Press, 2002.
ציטוט MLACampbell, Colin, và Colin Campbell; Kathy Gude; JaMichael Duckworth. Matrix: Pre-Intermediate (Teacher's Book). Oxford: Oxford University Press, 2002.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.