赵建昆主编. (2014). 跟VOA BBC CNN AP练六级听力：改革版. 中国石化出版社.
Chicago Style (17th ed.) Citation赵建昆主编. 跟VOA BBC CNN AP练六级听力：改革版. 中国石化出版社, 2014.
MLA (8th ed.) Citation赵建昆主编. 跟VOA BBC CNN AP练六级听力：改革版. 中国石化出版社, 2014.
Warning: These citations may not always be 100% accurate.