Frazier, K. (2000). Let's go: Student book (2nd ed.). Oxford: Oxford University Press.
Chicago Style aipamenaFrazier, Karen. Let's Go: Student Book. 2nd ed. Oxford: Oxford University Press, 2000.
MLA aipamenaFrazier, Karen. Let's Go: Student Book. 2nd ed. Oxford: Oxford University Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.