APA引文

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

Chicago Style (17th ed.) Citation

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

MLA引文

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

警告：這些引文格式不一定是100％准確.