APA aipamena

Dunn, V., & Gruber, D. Listening. Intermediate.

Chicago Style aipamena

Dunn, Viviane, and Diann Gruber. Listening. Intermediate.

MLA aipamena

Dunn, Viviane, and Diann Gruber. Listening. Intermediate.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.