Derek Strange. (1999). Pacesetter; Starter ( Workbook ). Oxford: Oxford Univ. Press.
Chicago Style aipamenaDerek Strange. Pacesetter; Starter ( Workbook ). Oxford: Oxford Univ. Press, 1999.
MLA aipamenaDerek Strange. Pacesetter; Starter ( Workbook ). Oxford: Oxford Univ. Press, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.