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