APA引文

Barker, C. (2003). New Snapshot Pre- Intermediate Language Booster. Pearson Longman.

Chicago Style Citation

Barker, Chris. New Snapshot Pre- Intermediate Language Booster. Pearson Longman, 2003.

MLA引文

Barker, Chris. New Snapshot Pre- Intermediate Language Booster. Pearson Longman, 2003.

警告：這些引文格式不一定是100％准確.