Douglas, D., & Hegelheimer, V. Assessing language using computer technology.
Chicago Style aipamenaDouglas, Dan., và Volker Hegelheimer. Assessing Language Using Computer Technology.
MLA aipamenaDouglas, Dan., và Volker Hegelheimer. Assessing Language Using Computer Technology.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.