Doff, A., & Becket, C. Listening 1 (4a ed.).
Chicago Style (17th ed.) CitationDoff, Adrian, and Carolyn Becket. Listening 1. 4a ed.
MLA引文Doff, Adrian, and Carolyn Becket. Listening 1. 4a ed.
警告：這些引文格式不一定是100％准確.
APA引文
Doff, A., & Becket, C. Listening 1 (4a ed.).
Chicago Style (17th ed.) CitationDoff, Adrian, and Carolyn Becket. Listening 1. 4a ed.
MLA引文Doff, Adrian, and Carolyn Becket. Listening 1. 4a ed.