Cita APA

Campbell, C., Duckworth, M., & Gude, K. (2002). Matrix: Pre - Intermediate Teacher's book. Oxford: Oxford Univ. Press.

Chicago Style Citation

Campbell, Colin, Michael Duckworth, i Kathy Gude. Matrix: Pre - Intermediate Teacher's Book. Oxford: Oxford Univ. Press, 2002.

Cita MLA

Campbell, Colin, Michael Duckworth, i Kathy Gude. Matrix: Pre - Intermediate Teacher's Book. Oxford: Oxford Univ. Press, 2002.